JP3126283B2 - Plane handle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat handle for locking a door of a distribution board or the like to a fixed frame.

[0002]

2. Description of the Related Art Conventionally, a flat handle, which comprises a case fixed to a door and a handle housed in a concave portion of the case when the door is folded down, and which raises the handle from the concave portion when the door is opened, is well known. With this plane handle,
With the turning of the upright handle, the engaging claw attached thereto turns to engage and disengage with the fixed frame to which the door is attached.

[0003]

When watertightness is required for a distribution board, packing may be interposed between a door of the distribution board and a fixed frame to which the door is attached. In order to shield electromagnetic waves, a metal door and a fixed frame may be connected by conductive packing. When using such packing with a conventional flat handle, it is necessary to firmly press the packing when closing the door and compress it sufficiently to make sure that the engaging claws for locking the door are engaged with the fixed frame. No. However, if the door is large, or if packing with a large surface area is used to improve the tightness between the door and the fixed frame, a large force is required to compress the packing, making it difficult to close the door. is there. Further, there is also a problem that if the handle is turned upside down and falls down at the turning position, the handle comes into contact with the edge of the case concave portion and damages the edge of the handle and / or the concave portion.

Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art in a flat handle that locks and unlocks by turning an upright handle.

[0005]

Means for solving the above problems The present invention is as follows to solve the above problems.

[0006] This invention has a handle storage recess 5A
A case 5 fixed to the door 2;
A handle 1 housed in A and engagement with the door 2
The case 5 includes the handle receiving recess.
Inner cylinder forming shaft hole 20 penetrating in its depth direction in 5A
71, an outer cylinder 72 located on the outer periphery thereof, and the shaft hole 20.
And a handle abutment surface 36 located about;
The handle 1 has its base end 25 inserted into the shaft hole 20.
Shaft inserted slidably around and longitudinally
A shaft support extending in the width direction of the handle 1 at an outer end of the handle 22;
Raised with respect to the handle storage recess 5A via the pin 23.
So that it can be turned down and pivoted around the shaft 22.
And the base end 25 is turned over by the handle 1.
First plane 3 abutting on said handle abutment surface 36 when lying down
4 and a second flat surface 35 that comes into contact when the handle 1 stands up.
And the first plane 34 and the second plane 35 are
Distance between the front Symbol first plane 34 and the center of the shaft supporting pin 23
The separation D is the distance between the second plane 35 and the pivot pin 23.
The first dimension e is larger than the separation d;
At the inner end of the shaft 22, a portion around the shaft 22 is provided.
A stopper 31 for regulating rotation in the direction
And the engaging claw 8 located on the inner side of the
It is fixed so as to rotate integrally with the shaft 22,
The inner and outer cylinders 71 and 72 of the case 5 and the stopper 3
1 through the stopper 31
Spring for urging the shaft 22 inward in the axial direction thereof
It is assumed that a flat handle in which 30 is stored .

[0007] On this assumption, the present invention is characterized in that the outer cylinder 72 is opposed in the circumferential direction.
A notch 73 having side edges 73A, 73B;
The stopper 31 is formed in a cylindrical shape, and
Is fitted to the outer periphery of the strut so as to be rotatable therearound, and
The notch 73 can be fitted to the peripheral wall of the upper 31.
It has a protrusion 80 inward in the radial direction, and the protrusion 80
From the inner surface of the bottom 76 of the stopper 31 to its peripheral wall 7
The first protrusion extending by the second dimension h toward the edge 75A of the fifth
Between the protrusion 80A and the inner surface of the bottom 76 of the stopper 31
The second dimension toward the edge 75A of the peripheral wall portion 75
second protrusion 80B extending by a third dimension H larger than h
The first protruding portion 80A is provided with the peripheral wall portion 75.
And a side edge 81 parallel to the bottom 76 and an edge 82 parallel to the bottom 76.
And the second protruding portion 80 </ b> B
Parallel to the side edges 83A, 83B and the bottom 76
The stopper 31 and the outer cylinder 72
The positional relationship of the handle storage recess of the handle 1
Out of the door 2 of the shaft 22 with the fall to 5A
When the spring 30 is compressed by sliding in the lateral direction,
The inner surface of the bottom 76 of the stopper 31 is the peripheral wall of the outer cylinder 72.
The hand is substantially in contact with the edge 72A and the hand
Before the handle 1 rises from the handle storage recess 5A.
When the shaft 22 slides inside the door 2, the spring 3
0 is extended by the first dimension e, the stopper
31 is a distance between the outer cylinder 72 and the door 2 by the first dimension e.
It slides inward and separates, and in this separated state,
The upright handle 1 is turned around the shaft 22.
When turned, the stopper 31 rotates and the second protrusion
The side edge 83A of the portion 80B is the notch 7 of the outer cylinder 72.
3 in contact with the side edge 73A, and in this contact state,
When the handle 1 is about to fall down, the first protrusion 8
0A is the peripheral edge 72 of the outer cylinder 72
The point of contact with A is that the lodging is prevented.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the flat handle according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a partial cutaway view of a metal distribution board in which a flat handle 1 according to the present invention is attached to a door 2. In the figure, a door 2 is closed to a fixed frame 3 of a distribution board via a conductive packing 4 and is locked by an engagement claw 8, and a handle 6 which can be raised and lowered is in an upright state. . The unlocked state by the engagement claw 8 is shown by a virtual line.

The flat handle 1 includes a case 5 fixed to the door 2, a concave portion 5A of the case 5, a rotatable shaft 22 (see FIG. 2) penetrating the concave portion 5A in the depth direction, and an outer end of the shaft 22. Handle 6, case 5 attached to the part
A movable engagement piece 7 for preventing the handle 6 from being inadvertently raised, and a shaft 22 located on the rear side of the case 5.
And an engaging claw 8 which is attached to the inner end of the handle and pivots about a shaft 22 integrally with the handle 6. Handle 6
Is turned to the required angle in the direction of the arrow W1 while standing up,
When the engaging claw 8 is retracted from the engaging area of the fixed frame 3, the door 2 is unlocked (see FIG. 2).

The door 2 has a notch 1 into which the engaging claw 8 enters and retreats, in addition to a front portion 11 which is a part of the outer surface of the distribution board.
2 and a folded portion 11C that can be pressed against the packing 4.

The fixed frame 3 corresponds to the main body of the distribution board. The inner wall 15 has a through hole 16 having a surface 17 to be engaged with the engaging claw 8, and the inner wall 15 is bent. The packing 4 is adhered to the flange portion 15A formed by the above process using a conductive adhesive (not shown).

FIG. 2 is a view taken along line II-II in FIG. The state in which the handle 6 is folded down and stored in the recess 5A of the case 5 is indicated by a solid line, and the state in which the handle 6 stands up is indicated by a virtual line. A shaft 22 slidable in the axial direction and the circumferential direction is inserted through a shaft hole 20 extending in the depth direction of the concave portion 5A at the upper end of the concave portion 5A. A shaft support pin 23 is inserted in a radial direction of an outer end 24 of the shaft 22, and a base end 25 of the handle 6 is supported so as to be rotatable (turnable) around the pin 23. With this support, the handle 6 can be raised and lowered with respect to the case 5 in the directions of arrows X1 and X2. The shaft 22 has an inner end 26 extending from the rear surface of the case 5 formed in a prismatic shape, and the stopper 31 and the engaging claw 8 are fitted to the inner end 26 at respective square holes. . Therefore, the stopper 31 and the engaging claw 8
Is rotated together with the shaft 22, of which the stopper 31 can abut on a required part of the case 5 to regulate the turning angle of the handle 6 around the shaft 22. The retaining ring 32 attached to the shaft 22 is a stopper for the stopper 31, and the screw 27 and the washer 27 A screwed to the inner end 26 are
This is a stopper for the engaging claw 8. A ridgeline 33 extending in the width direction of the handle 6 is provided inside the base end portion 25 of the handle 6.
And a first plane 34 and a second plane 34
Due to the action of the biasing spring 30, the first flat surface 34 comes into pressure contact with the surface 36 of the peripheral edge of the shaft hole 20 of the case 5 when the handle 6 is lying down, and the second flat surface 35 when the handle 6 is standing upright. Presses against the surface 36. These first two
In the planes 34 and 35, the vertical distance D from the center of the pivot pin 23 and d are in a relation of D> d. The handle 6 has a locking jaw 40 at a free end 38 opposite the proximal end 25.

An annular groove 28 having the same center as that of the shaft hole 20 is formed on the back side of the case 5. A biasing coil spring 30 is accommodated in the groove 28, and the open end of the groove 28 is formed by a pressure contact portion 31 A of a stopper 31. By being closed, the engagement claw 8 is urged rightward in the figure. The side wall 31B of the stopper 31
When the handle 6 turns a required angle around the shaft 22,
A stopper (not shown) formed on the outer wall of the groove 28
To regulate the turning range of the handle 6. Case 5
Has a movable engagement piece 7 urged upward by a latch spring 42 at a lower end portion, and a claw 41 at a tip end of the engagement piece 7 is engaged with and disengaged from a jaw 40 at a lower end of the handle. The movable engagement piece 7 has a rib-shaped protrusion 43 on the front side of the case 5. When the finger is put on the protrusion and pressed downward against the latch spring 42 in the figure, the movable engagement piece 7 slides on the case 5, 41 can be disengaged from jaw 40. When the pressing is released, the pawl 41 returns to the original position by the action of the latch spring 42.

FIG. 3 is a side view of the door 2 to which the flat handle 1 is attached, and shows the movement of the flat handle 1 and the door 2 by (A) and (B).

The door 2 shown in FIG.
Abuts on the engaged surface 17 and is in a locked state. Handle 6
Is in a laid-down state and is housed in the recess 5A, and the state is the same as that in FIG. The packing 4 is located between the folded portion 11C of the door 2 and the flange portion 15A of the fixed frame 3 and is compressed.

In FIG. 3B, the handle 6 is in an upright state. Referring also to FIG. 2, when the handle 6 stands up in the direction of the arrow X <b> 1, the press contact surface with the case 5 changes from the first plane 34 to the second plane 35. At that time, the difference D-d = e Dakebane 30 Gasing length distance from the axis supporting pin 23 of the first and second planes 34 and 35, with respect to the case 5, with respect to door 2 in other words, the stopper 31 Engaging claw 8
Are separated by e. At the same time, the packing 4 is uncompressed and returns to the shape before compression. When the handle 6 pivots about the shaft 22 in the W1 direction (see FIG. 1) at a required angle, the engaging claw 8 also pivots and separates from the fixed frame 3, and the door 2 is unlocked. In order to close the door 2, these series of operations may be performed in reverse. However, if the handle 6 is turned while the door 2 is in contact with the packing 4 (see FIG. 3B) or is slightly compressed, the engaging claw 8 causes the engaged surface 17 of the fixed frame 3 to engage. The positional relationship between the door 2 and the fixed frame 3 is determined so as to make light contact with the door 2, so that when the door 2 is closed, it is not necessary to press the packing 4 strongly to compress it. Subsequently, when the handle 6 is turned down, the door 2 is pressed against the packing 4 by levering the handle 6, and the door 2 and the engaging claw 8 approach each other by a distance e. This allows the handle 6 to fall down with a small force and a large compressive force to act on the packing 4.

If the compressive force of the biasing spring 30 is increased and the area of the first flat surface 34 is reduced or curved, the handle 6 quickly rises up even with a slight force. This is convenient, but on the other hand, it may stand up by unexpected impact. However, the flat handle 1 has a movable engagement piece 7 for preventing the folded handle 6 from standing up, so that such an unexpected standing up can be prevented. The upper and lower ends of the flat handle 1 are fixed to the front portion 11 of the door 2 by screws 50.

FIGS. 4 and 5 are a sectional view similar to FIG. 2 showing an embodiment of the present invention, and a view taken on line VV. This planar handle 1 is different from that of FIG. 2 in that a case 5 for receiving the coil spring 30 and a stopper 31 are provided.
The structure is as follows. The case 5 has an inner cylinder 71 rotatably supporting the shaft 22 on the back surface thereof, and an outer cylinder 72 positioned concentrically with the inner cylinder 71, and the spring 30 is housed between the inner and outer cylinders 71, 72. It has an annular groove 28. The outer cylinder 72 is a circumferential
A notch portion 73 having a partially removed wall portion is provided.
Has side edges 73A, 73B facing each other in the circumferential direction. The stopper 31 is a cylinder that fits into the outer cylinder 72 from the outside and is slidable in the circumferential direction, and has a peripheral wall portion 75 and a bottom portion 76. The inner peripheral surface of the peripheral wall portion 75 has a radially inwardly projecting portion 80 that can be fitted into the cutout portion 73. A square hole 77 is provided at the center of the bottom portion 76 and is fitted to the inner end portion 26 of the shaft 22 having a square cross section. A retaining ring 32 for retaining the shaft 22 is attached to a portion where the shaft 22 extends from the square hole 77.
A screw hole 79 for attaching (not shown) is formed.

FIG. 6 is a side view showing a state in which the stopper 31 is fitted to the outer cylinder 72. The protrusion 80 of the stopper 31 has a dimension extending from the bottom 76 toward the peripheral edge 75A.
A first projecting portion 80A having a law h, the peripheral wall end from the bottom 76
A second protruding portion 80B having a dimension H extending larger than the dimension h toward the edge 75 . The first protrusion 80A is
And a side edge 81 and end edge 82, the second projecting portion 80B having the left and right side edges 83A, and 83B and the edge 84. In FIG. 4A, the handle 6 falls down as shown in FIG.
The spring 30 is in a compressed state, and the inner surface of the bottom portion 76 is substantially in contact with the peripheral wall edge 72A of the outer cylinder 72.
In (B), the handle 6 stands up, the spring 30 extends by e, and the stopper 31 rises by e. This e is larger than h, and the edge 82 of the first protrusion 80A is
Is located slightly above the peripheral wall edge 72A of the outer cylinder 72, but the edge 84 of the second projection 80B is located below the peripheral wall edge 72A. Therefore, the upright handle 6
Is turned, the stopper 31 is integrally rotated in the direction of arrow P, and the side edge 83A of the second projecting portion 80B is
Abuts on the side edge 73A of the notch and stops. In the stopper 31 in this state, when the turned handle 6 is to fall down, the edge 82 of the first protrusion 80 </ b > A
It abuts on the peripheral wall edge 72A to prevent its fall. Therefore, the handle 6 does not fall down when it is in the turning state. In addition, it is possible to avoid a trouble that the handle 6 falls down and the lower surface 6A of the handle comes into contact with the opening edge 5B (see FIG. 1) of the handle storage recess 5A, and they are damaged. Handle 6 falls down and recess 5A
, The side edges 81 and 83B of the protruding portion 80 are substantially in contact with the peripheral wall edges 73A and 73B of the outer cylinder 72. Therefore, the handle 6 in this state does not move to the left or right.

[0021]

In the flat handle according to the present invention, when the handle is operated, the engaging claw and the door are separated from and approach to each other, and the engaging claw is disengaged from the fixed frame almost without being affected by the thickness of the packing. I do. Therefore, the operation of the handle for engaging and disengaging does not require a large force and is light. Since the handle is used as a lever to compress the packing, it is easy to obtain a large compressive force, and the packing having a large surface area can be used. The handle is spring-biased in the upright direction. However, since the case is provided with a means for preventing the handle from rising, the handle can be safely prevented from rising when unexpected.

In the aspect in which the handle in the turned state can be prevented from falling down, it is possible to prevent the handle from moving left and right when the handle falls down and is stored in the case recess. In addition, when the vehicle is turned upright, the handle and the edge of the case recess are not damaged by the fall of the handle.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing a distribution board to which a flat handle is attached, in a partially broken manner.

FIG. 2 is a view taken in the direction of arrows II-II in FIG. 1, but in a state where the steering wheel is lying down.

FIGS. 3A and 3B are partial side views of a distribution board to which a flat handle is attached, wherein FIG. 3A shows a state where the handle is lying down, and FIG. 3B shows a state where the handle is upright.

FIG. 4 shows a plane handle in a different mode from FIG. 1;
Similar drawings.

FIG. 5 is a view taken along line VV of FIG. 4;

FIG. 6 is a side view of the main part of the flat handle, showing a different fitting state of the stopper depending on (A) and (B).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flat handle 2 Door 3 Fixed frame 5 Case 6 Handle 8 Engagement claw 22 Shaft 30 Urging spring 31 Stopper

Claims (1)

(57) [Claims] 1. A hand5A storage recess 5A and fixed to door 2
Case 5 and the handle housing recess 5A.
Handle 1 and an engagement claw 8 that engages with and disengages from the door 2.
The case 5 is provided in the handle storage recess 5A.
An inner cylinder 71 for forming the shaft hole 20 penetrating in the depth direction;
And an outer cylinder 72 located on the outer periphery of the shaft hole 20.
A handle abutment surface 36 for placement;
Has its base end 25 extending around and around the shaft hole 20.
Outer end of shaft 22 slidably inserted in
A support pin 23 extending in the width direction of the handle 1
Up and down with respect to the handle storage recess 5A through
Supported pivotably about the shaft 22;
When the handle 1 is down,
A first flat surface abutting a handle abutment surface;
A second plane 35 that comes into contact with the handle 1 when the handle 1 stands up;
The first plane 34 and the second plane 35 are the same as the first plane.
The distance D between the surface 34 and the center of the pivot pin 23 is
Than the distance d between the second plane 35 and the pivot pin 23
The relationship is increased by a first dimension e;
At the inner end, the shaft 22 is turned around
Stopper 31 for regulating the pressure, and the stopper 31
And the engaging claws 8 located inside the
The case 5 is fixed so as to rotate integrally with the case 22.
Of the inner and outer cylinders 71 and 72 and the stopper 31
The space is formed through the stopper 31 through the stopper 31.
The spring 30 for urging the shaft 22 inward in the axial direction is housed.
On the flat handle being done; The outer cylinder 72 has side edges 73A facing each other in a circumferential direction thereof,
A notch 73 having a notch 73B;
Numeral 1 is formed in a cylindrical shape and
The stopper 31 is fitted so as to be rotatable in the circumferential direction.
In the peripheral wall portion, inward in the radial direction that can be fitted into the notch portion 73
And the protrusion 80 is provided with the stopper
-31 from the inner surface of the bottom 76 to the edge 75 of the peripheral wall 75
A first protrusion 80A extending toward A by a second dimension h
From the inner surface of the bottom 76 of the stopper 31 to its peripheral wall.
Larger than the second dimension h toward the edge 75A of the portion 75
Good A second protrusion 80B extending by a third dimension H;
The first protrusion 80A is parallel to the peripheral wall 75.
A side edge 81 and an edge 82 parallel to the bottom 76;
The second protrusion 80 </ b> B is parallel to the peripheral wall 75.
Side edges 83A, 83B and edge 84 parallel to the bottom 76
And a positional relationship between the stopper 31 and the outer cylinder 72.
The person in charge handles the handle 1 to the handle storage recess 5A.
To the outside of the door 2 of the shaft 22 with the fall
When the spring 30 is compressed by sliding of the
The inner surface of the bottom 76 of the outer tube 31 is the peripheral wall edge 72 of the outer cylinder 72.
A and almost in front of the handle 1
The shuffling is caused by standing up from the handle storage recess 5A.
The spring 30 slides inward of the door 2 of the
When extended by the first dimension e, the stopper 31 moves forward.
Slide from the outer cylinder 72 to the inside of the door 2 by the first dimension e.
To move away, and in this separated state, stand up
The handle 1 pivots about the shaft 22
Then, the stopper 31 rotates and the second protrusion 80
The side edge 83A of B is on the side of the notch 73 of the outer cylinder 72.
In contact with the rim 73A, and in this contact state, the hand
When the first protrusion 80A is about to fall down, the first protrusion 80A
The edge 82 contacts the peripheral wall edge 72A of the outer cylinder 72.
The feature is that the contact is prevented from falling down
The flat handle.