JP2008202242A - Door handle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To develop an easily assemblable door handle capable of being assembled without the use of a screw etc. <P>SOLUTION: This door handle 1 comprises a structural member 10 on the side of integration with a long shaft, a structural member 11 on the side of a short shaft, and a handle member 6. The two structural members 10 and 11 are connected to each other via a fitting structure 13. The fitting structure 13 comprises an insertion piece 15 and an opening 40 subject to insertion. When the door handle 1 is assembled, the insertion piece 15 which is provided on one 11 of the structural members is inserted into the opening 40 in such a state that the handle member 6 is mounted to a shaft 5, and the insertion piece 15 or the opening 40 is turned. This makes an engaging recess 30 of the insertion piece 15 reach a position of a locking portion 55 of the opening 40. The locking portion 55 is moved to the inside by its own elastic force, and engaged with the engaging recess 30. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a handle attached to a door. The door handle of the present invention can be used for both sliding doors and wing doors. The present invention can be applied to both a fixed door handle and a movable lever handle.

A handle is attached to the door so that the user can easily operate it. For example, a fixed handle is fixed to the door 100 at two locations as shown in FIG.
The fixed door handle 101 has upper and lower end portions 103 as shown in FIG. 12, and a handle member 105 is provided in the middle.
In the door handle 101, upper and lower end portions 103 are connected by a shaft (not shown), and a cylindrical handle member 105 is attached to the shaft.
In the prior art, the end portions 103 are connected to each other and the shaft portion and the handle member 105 are connected to each other using a fastening element such as a screw or a pin.
JP 2004-3356

Since the door handle is operated by touching the handle member, the color, material and touch of the handle member are one of important product characteristics.
However, the quality of the above-described colors, materials, touch feeling, etc. does not have universal judgment criteria, and the quality is determined solely by the user's preferences and hobbies. For this reason, door handle manufacturers have prepared various types of handle members of different colors and materials to meet various user preferences, select handle members according to user preferences, and assemble with end members. Will be shipped.

  In addition, in order to increase transportation efficiency, the above-described end members and handle members may be shipped in a separated state and assembled at a construction site.

  As described above, the door handle has end portions at both ends, and a handle member is attached between the ends. However, as described above, the connection between the end members and the shaft portion and the handle member can be performed using screws or the like. It was done using fastening elements such as pins. Therefore, the door handle of the prior art has a problem that it takes time to assemble. In particular, when assembling at the construction site, the operator is unfamiliar, and it has been desired to take time and improve the work.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to develop a door handle that can be easily assembled by paying attention to the above-described problems of the prior art.

  The invention according to claim 1 for solving the above-described problem is a door handle in which end portions are provided at both ends of the shaft portion, and a handle member is mounted between the end portions around the shaft portion. A structural member in which all or part of at least one end portion and the shaft portion are integrated; another structural member provided with at least the other end portion; and a handle member. The fitting structure portion is composed of an insertion piece provided in one structural member and an insertion opening provided in the other structural member, and a locking portion is provided in the insertion opening. The insertion piece is rotatable in a state where it is inserted into the insertion opening, and when the insertion piece and the insertion opening are in a specific rotation position, the lock portion is engaged with a part of the insertion piece. Preventing rotation of the insert piece and When in the position, the structural members are prevented from detaching in the axial direction, the handle member is cylindrical, and the lock portion may be detached from the insertion piece when a part of the inner surface of the handle member presses the lock portion. A door handle characterized in that it is blocked.

The door handle of the present invention is basically composed of three members and is made by combining these members. In the door handle of the present invention, with the handle member mounted on the shaft portion, the insertion piece provided on one of the structural members is inserted into the insertion opening, and the insertion piece or the insertion opening is rotated. In the door handle of the present invention, a structural member integrated with one end portion and another structural member provided at the other end portion are fitted in the fitting portion. Do not use screws for connection.
The fitting structure part is constituted by an insertion piece provided in one structural member and an insertion opening provided in the other structural member. The insertion piece can be rotated while being inserted into the insertion opening. The insertion opening is provided with a lock portion. When the insertion piece and the insertion opening are at a specific rotational position, the lock portion engages with a part of the insertion piece to prevent the insertion piece from rotating. Further, when in the rotational position, the structural members are prevented from detaching in the axial direction. Therefore, when the insertion piece is inserted into the insertion opening and rotated, both reach a specific rotation position and cannot be separated in the axial direction. Further, since the lock portion engages with a part of the insertion piece, relative rotation between the insertion piece and the insertion opening is prevented, so that the structural members are fixed in a state where they cannot be separated.
Moreover, in the door handle of this invention, when a part of inner surface of a handle member presses a lock part, it is prevented that a lock part detach | leaves from an insertion piece. Therefore, the structural member is not separated after the door handle is attached to the door.

  According to the second aspect of the present invention, the insertion piece is provided with a rotation direction contact member, the insertion opening has a contact portion, and when the insertion piece is inserted and rotated, the rotation direction contact member of the insertion piece 2. The door according to claim 1, wherein the door is in contact with a contact portion of the insertion opening to prevent further rotation, and the lock portion engages with a part of the insertion piece at the rotation position. It is a handle.

  According to the second aspect of the present invention, when the insertion piece is relatively rotated, the contact member and the contacted member are in contact with each other and cannot be rotated any further. And the lock | rock part engages with a part of insertion piece in the said position. Therefore, in the door handle of the present invention, the engagement of the lock portion is reliable. That is, in the present invention, when the insertion piece is relatively rotated, the rotation is forcibly stopped at a specific position, so that the position where the lock portion should be engaged does not get over or pass through. Therefore, in the door handle of the present invention, the engagement of the lock portion is reliable.

  According to a third aspect of the present invention, the insertion piece and / or the insertion opening has an asymmetric shape with respect to the center, and when the insertion piece is inserted into the insertion opening and rotated in one direction, the lock portion is one of the insertion pieces. When it reaches a specific rotation angle that engages with the part and rotates in the reverse direction, it prevents the insertion piece and any part of the insertion opening from colliding to reach the specific rotation angle. The door handle according to claim 1 or 2.

  The door handle of the present invention has a function of preventing assembly errors. That is, in the door handle of the present invention, the lock portion can be engaged only when the insertion piece or the insertion opening is rotated in a specific direction. Therefore, the two structural members are always fixed in a regular positional relationship.

  According to a fourth aspect of the present invention, the insertion piece has a cross-sectional shape perpendicular to the axial line depending on the portion in the axial direction, and has a large cross-sectional area with a large cross-sectional area and a small cross-sectional area with a small cross-sectional area. As for the insertion opening, the shape of the opening in the direction perpendicular to the axis differs depending on the position in the axial direction, and there are a large opening area part with a large opening area and a small opening area part with a small opening area, and the insertion piece is at a predetermined insertion position. Sometimes the large cross-sectional area and small cross-sectional area of the insertion piece are positioned in the large opening area and small opening area of the insertion opening, respectively, and the insertion piece is cut to allow insertion of the insertion piece in a specific rotational position. The door handle according to any one of claims 1 to 3, wherein a notch is provided.

In the door handle of the present invention, the insertion piece is provided with a large cross-sectional area portion and a small cross-sectional area portion, and when the insertion piece is at a predetermined insertion position, the large cross-sectional area portion and the small cross-sectional area portion of the insertion piece are respectively inserted openings. It is located in the large opening area part and the small opening area part. Therefore, the two structural members are fitted in the axial direction, and even if a tensile force is applied, the large cross-sectional area portion of the insertion piece interferes with the small opening area portion of the insertion opening, and the structural members cannot be separated from each other. .
In addition, since the insertion piece is provided with a notch that allows insertion of the insertion piece when in a specific rotation posture, the insertion piece can be inserted into the insertion opening if the insertion piece is in a specific rotation posture.

  The invention according to claim 5 is characterized in that an inclined portion or a convex portion is provided on the inner surface of the handle member, and the lock portion is pressed by the inclined portion or the convex portion. It is a door handle of description.

In the door handle of the present invention, an inclined portion or a convex portion is provided on the inner surface of the handle member, and the lock portion is pressed by the inclined portion or the convex portion. Therefore, the pressing force of the lock part is strong and the lock part does not come off.
Moreover, since the inclined part or the convex part of the handle member is strongly pressed against the structural member side, rattling of the handle member is small.

  According to a sixth aspect of the present invention, when the handle member is rotated in a constant rotational direction, the coupling strength with the structural member increases, the handle member has a reverse rotation preventing function, and the handle member has a direction in which the coupling strength increases. The door handle according to any one of claims 1 to 5, wherein the door handle is rotatable only on the door.

  When the door handle of the present invention is rotated in a certain direction, rattling is reduced, and further, rotation in the loosening direction is prevented by the reverse rotation prevention function. Therefore, rattling can be removed by a simple operation.

  The door handle of the present invention is assembled by inserting the insertion piece provided in one structural member into the insertion opening and rotating the insertion piece or the insertion opening with the handle member mounted on the shaft portion. To do. In principle, the door handle of the present invention can be assembled without using screws or the like. Therefore, the door handle of the present invention is easy to assemble.

Embodiments of the present invention will be further described below.
FIG. 1 is an exploded perspective view of a door handle according to an embodiment of the present invention. FIG. 2 is a perspective view showing an assembly process of the door handle of FIG. FIG. 3 is a perspective view showing an assembly process subsequent to FIG.

  As shown in FIG. 3, the door handle 1 of the present embodiment has two end portions 2 and 3, and both end portions 2 and 3 are connected by a shaft portion 5. Conversely, there are end portions 2 and 3 at both ends of the shaft portion 5. The handle member 6 is mounted around the shaft portion 5 and between the end portions 2 and 3.

As shown in FIG. 1, the door handle 1 according to the present embodiment includes a long shaft integrated structural member 10, a short shaft structural member 11, and a handle member 6. The two structural members 10 and 11 are connected by a fitting structure portion 13. The fitting structure part 13 is comprised by the insertion piece 15 and the to-be-inserted opening 40 which are mentioned later.
The long shaft integrated side structural member 10 is formed by coupling substantially the entire end portion 2 and the shaft portion 5, and an insertion piece 15 is provided at the tip of the shaft portion 5.
The end portion 2 has an “L” shape as a whole in the same manner as a known door handle, and includes an attachment portion 16 attached to the door, a columnar portion 17 and an elbow portion 18.

The shaft portion 5 of the long shaft integrated side structural member 10 is thinner than the columnar portion 17 and the elbow portion 18 described above, and extends in a direction perpendicular to the columnar portion 17.
The insertion piece 15 is a characteristic configuration of the present invention and will be described in detail.
4A is an enlarged perspective view of an insertion piece employed in the door handle according to the embodiment of the present invention, and FIGS. 4B, 4C, 4D, and 4E are cross-sectional views of the respective parts.
The insertion piece 15 is divided into four regions in the axial direction as shown in FIG.
The most distal region (AA cross-sectional region) of the insertion piece 15 is the large cross-sectional area portion 20, and is the region having the largest area in the insertion piece 15.

  The shape of the large cross-sectional area 20 is an oval shape, and is a shape in which a cutout portion 21 is provided on a side surface of a circle. That is, the cross-sectional shape of the large cross-sectional area portion 20 has a shape in which the circular arc portion 22 is provided at two places and the linear portion 23 is provided therebetween. The circular arc part 22 and the straight line part 23 are in opposing positions. The arc portion 22 and the straight portion 23 each have an angle region of about 90 °.

  The subsequent area is the small cross-sectional area 25. The cross-sectional shape of the small cross-sectional area portion 25 is circular, and the cross-sectional area is the smallest among the insertion pieces 15. Specifically, the small cross-sectional area 25 is a circle whose diameter is the width between the notches 21 of the large cross-sectional area 20 described above.

A further area is the first asymmetric cross section 26. The cross-sectional shape of the asymmetric cross-sectional portion 26 is a figure surrounded by the arc portion 27, the short straight portion 28, the cam portion 29, the engagement concave portion 30, the protruding portion 31, and the long straight portion 32.
In other words, the arc portion 27 is an arc centered on the axis of the shaft portion, and has an angle region of about 90 °.

  The short straight line portion 28 is a straight line corresponding to a string and has an angle region of about 90 °.

  The cam portion 29 is a curve in which the distance from the axis of the shaft portion increases as it is angularly separated from the short straight portion 28, and constitutes a cam surface.

The engaging recess 30 is located at the boundary between the terminal end of the cam portion 29 and the protruding portion 31 and has a concave shape.
A region where the engaging recess 30 and the cam portion 29 described above are combined is an angle region of about 90 °.
The protruding portion 31 is the most protruding portion of the first asymmetric cross section 26, and the protruding surface is wall-shaped.
The long straight part 32 connects the protruding part 31 and the arc part 27 with a straight line, and is parallel to the short straight part 28 described above. The widths of the long straight portion 32 and the short straight portion 28 are equal to the width between the cutout portions 21 described above.

A region adjacent to the first asymmetric cross section 26 in the axial direction is a second asymmetric cross section 35.
The second asymmetric cross-section 35 has the same cross-sectional shape as the first asymmetric cross-section 26 described above, but the phase of the position is shifted by 180 °. That is, the second asymmetric cross section 35 has a shape surrounded by the arc portion 27, the short straight portion 28, the cam portion 29, the engagement concave portion 30, the protruding portion 31, and the long straight portion 32. The first asymmetric cross section 26 is at a position rotated by 180 ° with respect to that.

  When the entire area of the insertion piece 15 is looked over, the two surfaces are cut off. That is, as described above, the large cross-sectional area 20 at the tip is provided with the notch 21, and the subsequent small cross-sectional area 25 is a circle having a diameter between the notches 21 of the large cross-sectional area 20. Further, the first asymmetric cross-section portion 26 and the second asymmetric cross-section portion 35 continue to have a short straight portion 28 and a long straight portion 32, and these portions are also notched. Therefore, when each region of the insertion piece 15 is looked over as a whole, the two surfaces are cut off.

Next, the short shaft side structural member 11 will be described. FIG. 5 (a) is an enlarged perspective view of a short shaft side structural member employed in the door handle of the embodiment of the present invention, and (b), (c), (d), (e), and (f) are sectional views of each part. It is.
The short shaft side structural member 11 is formed by combining a part of the end portion 3 and the shaft portion 5, and an insertion opening 40 is provided at the tip of the shaft portion 5.
The end portion 3 has an “L” shape as a whole in the same manner as the long-shaft integrated side structural member 10 described above, and has an attachment portion 16 attached to the door, a columnar portion 17 and an elbow portion 18. .

The shaft portion 5 of the short shaft side structural member 11 is extremely short, and an insertion opening 40 is provided at the tip thereof. The shaft portion 5 of the short shaft side structural member 11 is provided with a hook-shaped protrusion 41. The projection 41 exhibits a reverse rotation preventing function in combination with a hook-like projection 61 of the handle member 6 described later.
The insertion opening 40 is also divided into four regions, similar to the insertion piece 15 described above.
Although the insertion piece 15 has been described in order from the distal end side, the insertion opening 40 will be sequentially described from the back side in order to clarify the correspondence.

The deepest end area (AA cross-sectional area) of the insertion opening 40 is a large opening area 46, and is the area having the largest opening area in the insertion opening 40. As shown in FIG. 5, the large opening area 46 leaves only the two members 57 and 58, and two surfaces in the vertical direction are open. The inner walls of the two members 57 and 58 are parallel, and the width thereof is equal to the diameter of the arc portion 22 of the large cross-sectional area portion 20 of the insertion piece 15.
There is a ridge 45 on the outer periphery of the two members 57 and 58. The protrusion 45 is provided from the shaft portion 5 to the tip of the insertion opening 40 as shown in FIG.

  The subsequent area is a small opening area 47. Also with respect to the small opening area portion 47, only the two members 57 and 58 are left, and two surfaces in the perpendicular direction are open. The inner walls of the two members 57 and 58 of the small opening area portion 47 are parallel, and the width thereof is equal to the diameter of the small cross-sectional area portion 25 of the insertion piece 15.

A further subsequent area is the first asymmetric opening 51. The first asymmetric opening 51 has two members 57 and 58 that are continuous with the small opening area 47 described above.
The first asymmetric opening 51 is formed with a lock portion 55 at a part of the side on the attachment portion 16 side. The lock part 55 is a protrusion protruding inward. The lock portion 55 is one of the two members 57 and 58 described above, and is provided at an end portion in the rotation direction.

A region adjacent to the first asymmetric opening 51 in the axial direction is the second asymmetric opening 56.
The second asymmetric opening 56 has the same cross-sectional shape as the first asymmetric opening 51 described above, but the phase of the position is shifted by 180 °.

  Looking over each region of the insertion opening 40 as a whole, it has a shape in which two members 57 and 58 projecting in a cantilever manner are provided facing each other.

The handle member 6 is made of resin, metal, wood or other material and has a cylindrical shape.
FIG. 6 is a perspective view (a) of the handle member, an enlarged view (b) of the end face thereof, and an AA sectional view (c).
The handle member 6 has a cylindrical shape as described above, but there is a portion where the cross-sectional shape exhibits a cam surface in the vicinity of the end portion. That is, the cam forming portion 60 gradually increases in thickness as it advances in a certain rotational direction. Therefore, when this is developed, an inclined surface is formed.

  Further, a sawtooth-shaped protrusion 61 is provided in the vicinity of the end face of the handle member 6. The protrusion 61 is formed by arranging a number of hook-shaped protrusions having a triangular cross-sectional shape. In the hook-shaped protrusion, the inclination of one inclined surface is gentler than that of the other. The position of the serrated projection 61 of the handle member 6 is a position where it can engage with the hook-shaped projection 41 provided on the shaft portion 5 of the short shaft side structural member 11 in the assembled state of the door handle. is there.

Next, a method for assembling the door handle of this embodiment will be described.
7 and 8 are a front view of the door handle showing the posture of each member during assembly and a cross-sectional view of each part in this state.
As shown in FIG. 2, the door handle 1 of the present embodiment has a handle member 6 mounted on the shaft portion 5 of the short shaft side structural member 11. Subsequently, the long-shaft integrated structural member 10 is held in a posture in which the long-shaft integrated structural member 10 is rotated by 90 ° with respect to the short-shaft structural member 11, and the insertion piece 15 on the long-shaft integrated structural member 10 side is It is inserted into the insertion opening 40 on the 11th side. Then, the long shaft integrated structural member 10 and the short shaft structural member 11 are relatively rotated, and the columnar portions 17 of the long shaft integrated structural member 10 and the short shaft structural member 11 are aligned on the same plane.

Here, in this embodiment, since the shapes of the insertion piece 15 and the insertion opening 40 are special, the long shaft integrated side structural member 10 is inserted in a posture that is not rotated by 90 ° with respect to the short shaft side structural member 11. The piece 15 cannot be inserted into the insertion opening 40 of the short shaft side structural member 11.
Further, the insertion itself is possible if the long shaft-integrated side structural member 10 is rotated by 90 ° with respect to the short shaft-side structural member 11. However, if the posture is not rotated by 90 ° in the normal direction, the long shaft integrated side structural member 10 is integrated. The side structural member 10 cannot be rotated.

That is, the insertion opening 40 employed in the present embodiment has a shape in which the two members 57 and 58 protruding in a cantilever manner are provided facing each other as described above.
The widths of the two members 57 and 58 are narrower than the diameter of the arc portion 22 of the large cross-sectional area portion 20 of the insertion piece 15. Therefore, when the direction of the large-area arc part 22 coincides with the direction of the two members 57 and 58, the arc part 22 of the large cross-sectional area part 20 collides with the two members 57 and 58, and the insertion piece 15 is moved to the short axis side structural member 11. The insertion opening 40 cannot be inserted into the insertion opening 40.

  On the other hand, the insertion piece 15 has a shape in which two surfaces are cut off. That is, as described above, the notch portion 21 is provided in the large cross-sectional area portion 20 at the tip, and the subsequent small cross-sectional area portion 25 is a circle whose diameter is the width between the notch portions 21 of the large cross-sectional area portion 20. Further, the first asymmetric cross-section portion 26 and the second asymmetric cross-section portion 35 have a short straight portion 28 and a long straight portion 32, and these portions are also notched, so that the notched portion is inserted. The insertion piece 15 can be inserted into the insertion opening 40 of the short-axis-side structural member 11 only when the posture faces the two members 57 and 58 of the opening 40.

The insertion piece 15 has a so-called two-chamfered shape, and the insertion opening 40 is opposed to the two members 57 and 58 so that the insertion opening 15 is inserted even when the insertion piece 15 is rotated 180 °. 40 can be inserted.
However, in this embodiment, the long shaft integrated side structural member 10 cannot be rotated unless it is in a normal posture. The reason for this will be described later.

Returning to the description of the assembly procedure, the handle member 6 is in a posture (rotated 90 ° counterclockwise) in which the long shaft integrated structural member 10 is normally rotated by 90 ° with respect to the short shaft structural member 11 as shown in FIG. When the insertion piece 15 enters the insertion opening 40 and the tip of the insertion piece 15 hits the back of the insertion opening 40, the large cross-sectional area portion 20 of the insertion piece 15 is inserted into the insertion opening as shown in FIG. There are 40 large opening areas 46. Further, the small cross-sectional area 25 of the insertion piece 15 is in the small opening area 47 of the insertion opening 40.
The first asymmetric cross section 26 of the insertion piece 15 is in the first asymmetric opening 51 of the insertion opening 40, and the second asymmetric cross section 35 of the insertion piece 15 is in the second asymmetric opening 56 of the insertion opening 40. To position.

Then, after inserting the insertion piece 15 into the insertion opening 40 of the short-axis-side structural member 11, the long-axis integral-side structural member 10 and the short-axis-side structural member 11 are rotated relative to each other in a specific direction. The columnar portions 17 of the integral-side structural member 10 and the short-axis-side structural member 11 are aligned on the same plane.
As a result, the insertion piece 15 rotates in the insertion opening 40 and reaches the state of FIG. 8 from the state of FIG.
That is, the large cross-sectional area portion 20 of the insertion piece 15 is in the large opening area portion 46 of the insertion opening 40, but the diameter of the arc portion 22 of the large cross-sectional area portion 20 is the same as that of the two members 57 and 58 of the insertion opening 40. Since it is equal to the width, the large cross-sectional area portion 20 of the insertion piece 15 can be rotated by the large opening area portion 46 of the insertion opening 40.
Similarly, the small cross-sectional area 25 of the insertion piece 15 is in the small opening area 47 of the insertion opening 40, but the diameter of the small cross-sectional area 25 is equal to the width of the two members 57 and 58 of the insertion opening 40. Therefore, the small cross-sectional area 25 of the insertion piece 15 can be rotated by the small opening area 47 of the insertion opening 40.

The first asymmetric cross section 26 of the insertion piece 15 is in the first asymmetric opening 51 of the insertion opening 40, and the second asymmetric cross section 35 of the insertion piece 15 is in the second asymmetric opening 56 of the insertion opening 40. However, when the insertion piece 15 is rotated, the insertion opening 40 is slightly opened to allow the insertion piece 15 to rotate.
That is, the first asymmetric cross section 26 and the second asymmetric cross section 35 of the insertion piece 15 have an arc portion 27 and a cam portion 29. The diameter of the arcuate surface 27 and the basic circle of the cam portion 29 are substantially equal to the widths of the first asymmetric opening 51 and the second asymmetric opening 56 of the insertion opening 40. It bulges outward from the circle.
Therefore, when the insertion piece 15 is rotated, the inner surface of the insertion opening 40 is pushed. However, the insertion opening 40 has a shape in which the two members 57 and 58 protruding in a cantilevered manner are opposed to each other as described above, and the first asymmetric opening 51 and the second asymmetric opening 56 are Since both are provided at positions close to the open end, they are bent with a slight force. As a result, the inner surface of the insertion opening 40 is expanded and the insertion piece 15 rotates.

When further rotating, the protruding portion 31 of the insertion piece 15 finally comes into contact with the end surfaces of the members of the first asymmetric opening 51 and the second asymmetric opening 56 as shown in FIG. 8, and further rotation is prevented.
In this rotational posture, the engaging recess 30 of the insertion piece 15 reaches the position of the lock portion 55 of the insertion opening 40. Therefore, the lock portion 55 moves inward by its own elastic force and engages with the engagement recess 30. That is, the fitting structure portion 13 is completed by the insertion piece 15 and the insertion opening 40.
As a result, the insertion piece 15 is unable to rotate in either the forward or reverse direction.
When the lock portion 55 is engaged with the engagement recess 30, a clicking sound is generated.

Further, in this state, the long shaft integrated structural member 10 and the short shaft structural member 11 are also prevented from moving in the drawing direction.
That is, as described above, the large cross-sectional area portion 20 of the insertion piece 15 is in the large opening area portion 46 of the insertion opening 40, and the small cross-sectional area portion 25 of the insertion piece 15 is in the small opening area portion 47 of the insertion opening 40. Although the insertion piece 15 is relatively rotated, the arc portion 22 of the large cross-sectional area portion 20 of the insertion piece 15 overlaps the back surface of the two members 57 and 58 of the small opening area portion 47. Therefore, when the long-shaft integrated structural member 10 and the short-shaft structural member 11 are pulled together, the arc portion 22 of the large cross-sectional area portion 20 of the insertion piece 15 comes into contact with the two members 57 and 58 of the small opening area portion 47 and is pulled out. Does not move in the direction.

The procedure described above is a case where the posture before joining of the long shaft integrated side structural member 10 and the short shaft side structural member 11 is appropriate and both are rotated in an appropriate direction. The engagement recess 30 of the insertion piece 15 reaches the position of the lock portion 55, and the lock portion 55 engages with the engagement recess 30.
However, when the insertion posture before joining is not appropriate or the rotation direction is wrong, the above does not occur, and the engagement recess 30 of the insertion piece does not reach the position of the lock member 55.
FIG. 9 is a front view of the door handle showing the behavior when the insertion posture before joining is not appropriate or the rotation direction is wrong, and a sectional view of each part in this state.

If there is such an error, for example, the back side of the protruding portion 31 (long straight line portion 32) is rotated between the first asymmetric opening 51 and the second asymmetric opening 56 of the insertion opening 40 by the rotation of the insertion piece 15 side. It collides with the members 57, 58 and becomes impossible to rotate before the engaging recess 30 of the insertion piece 15 reaches the position of the lock portion 55.
Therefore, in the door handle 1 of this embodiment, an assembly error does not arise.

As described above, the insertion piece is engaged by rotation only when the posture before joining the long shaft integrated structural member 10 and the short shaft structural member 11 is appropriate and both are rotated in an appropriate direction. The concave portion 30 reaches the position of the lock portion 55. Then, the lock portion 55 is engaged with the engagement recess 30 and an engagement sound is generated. When the engagement sound is confirmed, the operator subsequently rotates the handle member 6.
FIG. 10 shows a front view of the door handle showing the posture of each member during assembly and a sectional view of each part in this state, and shows a state when the handle member is rotated.
FIG. 11 shows the relationship between the handle member and the short shaft side structural member when the handle member is rotated, (a) is a cross-sectional view before rotation, and (b) is a cross-sectional view after rotation.

When the handle member 6 is rotated, the cam forming portion 60 of the handle member 6 reaches the positions of the two members 57 and 58 of the insertion opening 40 and tightens the two members 57 and 58 of the insertion opening 40 according to the rotation. That is, since the thickness of the portion (cam forming portion 60) presenting the cam surface gradually increases as it advances in a certain rotational direction, the two members 57 and 58 of the insertion opening 40 are moved toward the inner surface by the cam surface. Pressed. As a result, the lock portion 55 is pressed toward the inner surface, and the separation of the insertion piece 15 from the engagement recess 30 is prevented.
In addition, since the insertion opening 40 is tightened by the cam forming portion 60, the gap between the handle member 6 and the structural members 10 and 11 is reduced, and rattling of both is eliminated.

Further, in the present embodiment, a hook-like protrusion 41 is provided on the shaft portion 5 of the short shaft side structural member 11, and a sawtooth-like protrusion portion 61 is provided at a position corresponding to the handle member 6. Therefore, the hook-shaped protrusion 41 of the short shaft side structural member 11 and the sawtooth-shaped protrusion 61 of the handle member 6 are engaged to constitute a reverse rotation prevention mechanism. Further, the rotatable direction matches the direction in which the coupling strength between the handle member 6 and the short shaft side structural member 11 increases. Therefore, if the user grasps the handle member 6 and rotates it in a direction that makes it easy to rotate, and further rotates it to a non-rotatable state, the gap between the handle member 6 and the structural member 11 is completely eliminated, and rattling is eliminated. At the same time, the handle member 6 cannot rotate in either the forward or reverse direction.
In this way, by rotating the handle member 6 to a position where it cannot rotate, the assembly of the door handle of this embodiment is completed.

  In the embodiment described above, the door handle having a structure that is integrally fixed to the door and does not move relative to the door is taken as an example. However, a door that includes a member that moves relative to the door like a lever handle. The present invention can also be applied to the handle.

FIG. 1 is an exploded perspective view of a door handle according to an embodiment of the present invention. It is a perspective view which shows the assembly process of the door handle of FIG. It is a perspective view which shows the assembly process following FIG. (A) is an expansion perspective view of the insertion piece employ | adopted with the door handle of embodiment of this invention, (b) (c) (d) (e) is sectional drawing of each part. (A) is an expanded perspective view of the short shaft side structural member employ | adopted with the door handle of embodiment of this invention, (b) (c) (d) (e) (f) is sectional drawing of each part. . It is the perspective view (a) of a handle member, the enlarged view (b) of the end surface, and AA sectional drawing (c). It is the front view of the door handle which shows the attitude | position of each member in the case of an assembly, and sectional drawing of each part in this state. It is the front view of the door handle which shows the attitude | position of each member in the case of an assembly, and sectional drawing of each part in this state. It is the front view of a door handle which shows the behavior when the insertion posture before joining is not appropriate, or the direction of rotation is wrong, and the sectional view of each part in this state. The front view of the door handle which shows the attitude | position of each member in the case of an assembly, and sectional drawing of each part in this state are shown, and the state when a handle member is rotated is shown. The relationship between the handle member and the short shaft side structural member when the handle member is rotated is shown, (a) is a cross-sectional view before rotation, and (b) is a cross-sectional view after rotation. It is a perspective view which shows the structure of a general door handle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door handle 2, 3 End part 5 Shaft part 6 Handle member 10 Long shaft integrated side structural member 11 Short shaft side structural member 13 Fitting structure part 15 Insertion piece 20 Large cross-sectional area part 21 Notch part 25 Small cross-sectional area part 28 Short straight portion 30 Engaging concave portion 32 Long straight portion 40 Inserted opening 41 Hook-like projection 46 Large opening area portion 47 Small opening area portion 55 Locking portions 57 and 58 Two members 60 Cam forming portion 61 Protruding portion

Claims (6)

  In a door handle having end portions at both ends of the shaft portion, and a handle member mounted around the shaft portions and between the end portions, at least one end portion and all or a part of the shaft portion are integrated. A structural member, another structural member provided with at least the other end portion, and a handle member. The two structural members are joined by a fitting structure portion, and the fitting structure portion is one structural member. And an insertion opening provided in the other structural member. The insertion opening is provided with a lock portion, and the insertion piece is rotated while being inserted into the insertion opening. When the insertion piece and the opening to be inserted are at a specific rotational position, the lock portion engages with a part of the insertion piece to prevent the rotation of the insertion piece and is at the specific rotation position. Detachment of structural members in the axial direction is hindered. Is, the handle member is tubular, door handle, characterized in that a portion of the inner surface of the handle member locking portion by pressing the locking portion is disengaged from the insert is prevented.   The insertion piece is provided with a rotation direction contact member, the insertion opening has a contact portion, and when the insertion piece is inserted and rotated, the rotation direction contact member of the insertion piece becomes a contact portion of the insertion opening. 2. The door handle according to claim 1, wherein a further rotation is prevented by abutting with the locking portion, and the lock portion engages with a part of the insertion piece at the rotation position.   The insertion piece and / or the insertion opening has an asymmetric shape with respect to the center, and when the insertion piece is inserted into the insertion opening and rotated in one direction, the lock part engages with a part of the insertion piece. 3, when the rotation direction is reversed, the insertion piece and the insertion opening are prevented from colliding with each other to reach the specific rotation angle. Door handle.   The insertion piece has a cross-sectional shape perpendicular to the axis depending on the position in the axial direction, and has a large cross-sectional area with a large cross-sectional area and a small cross-sectional area with a small cross-sectional area. The opening shape differs depending on the axial direction part, there are a large opening area part with a large opening area and a small opening area part with a small opening area, and when the insertion piece is at a predetermined insertion position, The small cross-sectional area portions are respectively located in the large opening area portion and the small opening area portion of the insertion opening, and the insertion piece is provided with a notch portion that allows insertion of the insertion piece in a specific rotational posture. The door handle according to any one of claims 1 to 3, wherein the door handle is characterized.   The door handle according to any one of claims 1 to 4, wherein an inclined portion or a convex portion is provided on an inner surface of the handle member, and the lock portion is pressed by the inclined portion or the convex portion.   When the handle member is rotated in a certain rotational direction, the coupling strength with the structural member increases, the handle member has a reverse rotation prevention function, and the handle member can be rotated only in the direction in which the coupling strength increases. The door handle according to any one of claims 1 to 5.

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