JP2022074667A - Door handle - Google Patents

Abstract

To provide a door handle for opening a door without using fingers.SOLUTION: A door handle ((1, 1A, 1B, 1C, 1D)) for use in at least opening a door (20) secured in its closed position by a latch bolt (22), including: a working section (4) mounted on a door face for connection to a latch release mechanism provided inside the door (20); an operating section (2) disposed vertically above the working section (4) or spaced apart therefrom by a predetermined distance in a direction making an angle (α) of 45° or less toward the door tail end of the door (20) with respect to the vertical above, and provided with a portion with which an elbow of the operator engages; and a force transmitter (3) connecting the working section (4) and the operating section (2), in which manipulating the operating section (2) with the elbow of the operator causes the latch release mechanism to be actuated via the force transmitter (3) and the working section (4), thereby releasing the latch bolt (22).SELECTED DRAWING: Figure 3

Description

The present invention relates to a door handle for releasing a latch bolt when opening a door.

Normally, the door handle is opened and closed by grasping it with a hand, especially with a finger. A general door handle is attached at a position several cm horizontally from the side of the door on the door end side and a height of 85 to 100 cm from the floor, and a latch bolt is provided at the same height as the door handle on the side of the door. Has been done. The latch bolt is for fixing the door in the closed position and is urged by a spring so as to protrude from the side surface of the door. When opening the door, the door handle can be operated to retract the latch bolt against the spring into the door to release the latch and open the door.

Contact transmission is one of the transmission routes of pathogens such as viruses and bacteria. The door handle can be an opportunity to contact an unspecified number of people. Frequent disinfection of the door handle or the touched hand is cumbersome and it is preferable that the door handle is not touched by the fingers.

Patent Documents 1 to 3 present a specially shaped door handle or an attachment attached to an existing door handle in order to operate the door handle using the portion of the arm above the wrist without using fingers. ..

Japanese Patent Publication No. 2008-506872 Jitsufuku No. 3-39575 Gazette Japanese Unexamined Patent Publication No. 53-70534

However, the conventional door handles and handle attachments for opening and closing the door without using fingers are both provided at the height position of a general door handle. Therefore, when an operator having an average height of an adult tries to operate them using the elbow, there is a problem that it is difficult to operate because it is necessary to bend down.

An object of the present invention is to make it easy for a normal adult to operate a door handle that can be operated without using fingers while standing upright.

In order to solve the above-mentioned problems, the present invention has the following configurations. The numbers in parentheses are symbols in the drawings described later and are added for reference.
(1) Aspects of the present invention are at least in the door handles ((1,1A, 1B, 1C, 1D) used to open the door (20) fixed in the closed position by the latch bolt (22).
An actuating part (4) attached to the door surface so as to be connected to a latch release mechanism provided inside the door (20),
It is arranged vertically above the operating portion (4) or at an angle (α) of 45 ° or less on the door tail side of the door (20) with respect to the vertically upward position by a predetermined distance and operated. An operation unit (2) having a part where the person's elbow is engaged, and
It has a force transmission unit (3) that connects the operating unit (4) and the operating unit (2).
When the operation unit (2) is operated by the elbow of the operator, the latch release mechanism is operated via the force transmission unit (3) and the operation unit (4), thereby operating the latch bolt (22). Is characterized by being released.
(2) In the above embodiment, when the portion of the operation unit (2) with which the elbow portion of the operator engages is pulled horizontally in the direction away from the door (20), the elbow portion is It is preferable to have at least an engaging portion (2d).
(3) In the above embodiment, the portion of the operating portion (2) with which the elbow of the operator engages is the portion with which the elbow engages when the operating portion (2) is rotated (2b, 2c, 2d). ) Shall be provided at least.
(4) In the above aspect, the portion of the operation portion (2) where the operator's elbow is engaged has a saddle-shaped portion, and the saddle-shaped portion is in the plane parallel to the surface of the door (20). A ridge line (2a) that draws a convex curve, a concave surface (2b) formed by gradually increasing in diameter in both directions perpendicular to the door (20) from the ridge line (2a), and the concave surface (2b). It is preferable to provide a wall portion (2d) formed by the peripheral portions on both sides.
(5) In the above embodiment, the portion of the operation unit (2) with which the operator's elbow is engaged is from a circular end surface located in a plane parallel to the surface of the door (20) and a peripheral edge of the circular end surface. It is preferable to include a concave surface (2b) formed by gradually increasing the diameter in a direction perpendicular to the door (20), and a wall portion (2d) formed by a peripheral portion of the concave surface (2b). Is.
(6) In the above embodiment, the portion of the operation portion (2) with which the elbow portion of the operator engages has a substantially cylindrical convex surface (2c) having an axis in the direction perpendicular to the door (20) and a convex surface (2c). It is preferable to provide the door (20) in 2c) and the wall portion (2d) standing up from the opposite end.
(7) In the above embodiment, it is preferable that the operating portion (4) operates the latch release mechanism by performing any of rotation, push-pull, and vertical displacement operations.
(8) In the above aspect, it is preferable that the distance between the operating portion (4) and the operating portion (2) in the vertical direction is 20 to 40 cm.

According to the present invention, it is realized that a door handle that can be operated without using fingers can be easily operated by a normal adult in a posture of standing upright. As a result, the door can be opened and closed without contaminating the fingers, and smooth operation is possible without having to bend down. In particular, in hospitals, companies, etc., it is possible to open and close the door while standing upright when carrying equipment or materials, or when paying attention to contamination such as wet hands or before and after surgery. Useful for opening doors.

FIG. 1 is an external perspective view schematically showing an example of a door handle according to the first embodiment of the present invention together with a part of the door. 2A is a schematic perspective view of the door handle shown in FIG. 1, and FIG. 2B is a schematic plan view. FIG. 3 shows an example of a state when the door handle shown in FIGS. 1 and 2 is operated. FIG. 4 is an external perspective view schematically showing an example of a door handle according to a second embodiment of the present invention together with a part of the door. 5 (a) is a schematic partial perspective view of an example of a door handle according to a third embodiment of the present invention, and (b) and (c) are schematic partial perspective views of a modified form of (a). be. FIG. 6A is an external perspective view schematically showing an example of a door handle according to a fourth embodiment of the present invention together with a part of the door. (B) shows another door handle attached to the back side of the door. 7 (a) is a partial perspective view schematically showing an example of a door handle 1D according to a seventh embodiment of the present invention, and FIG. 7 (b) is a sectional view taken along the line xx of (a). (C) is a modified form.

Hereinafter, embodiments of the present invention will be described with reference to the drawings showing examples. The same or similar components are designated by the same reference numerals in each embodiment.

FIG. 1 is an external perspective view schematically showing an example of a door handle 1 according to the first embodiment of the present invention together with a part of the door 20.

The door 20 opens and closes by rotating around a rotation axis (not shown) located on the door tail side. A latch bolt 22 is provided on the door side surface 21 located on the door end side opposite to the rotating shaft. The height position of the latch bolt 22 is the same as that of a general door. The door frame (not shown) facing the door side surface 21 is formed with a recess into which the protruding latch bolt 22 enters. In the closed position of the door 20, the latch bolt 22 enters the recess of the door frame to fix the door 20, and the door 20 cannot be opened by simply pushing and pulling the door 20.

The latch bolt 22 is housed in a substantially rectangular parallelepiped case 23 embedded inside the door 20. The case 23 is also generally referred to as a key case, and may accommodate a dead bolt (not shown) together with a latch bolt. The side surface of the case 23 on the door end side is exposed on the same surface as the door side surface 21. The latch bolt 22 is elastically urged in a direction in which a substantially triangular prism portion at the tip always protrudes from the side surface of the case 23 on the door end side. A spring (not shown) that elastically urges the latch bolt 22 is provided in the case 23. In FIG. 1, since the flat surface 22a at the tip of the latch bolt 22 is on the front side, the door 20 is a single door that opens toward the front side.

Further, a latch release mechanism (not shown) for retracting the latch bolt 22 against the spring is provided in the case 23. The latch release mechanism is connected to the door handle 1, and when the operator operates the door handle 1, the latch release mechanism in the case 23 is activated, and the latch bolt 22 is retracted into the case 23 and released. .. The door 20 can be opened when the latch bolt 22 is released.

The door handle 1 is attached so as to project from the door surface at a position of about several cm on the door end side in the horizontal direction from the door side surface 21. The door handle 1 has an actuating portion 4, and a mounting structure for the door surface is provided at the base end of the actuating portion 4. In the embodiment of FIG. 1, the mounting structure of the operating portion 4 to the door 20 is the same as the mounting structure of a general handle lever. The actuating portion 4 is connected to a latch release mechanism in the case 23 provided inside the door 20, and the latch release mechanism can be directly operated. Therefore, the operating portion 4 is located at substantially the same height as the latch bolt 22.

The actuating portion 4 is rotatably attached to the door 20 around a rotation axis C extending perpendicular to the surface of the door 20. In the example of FIG. 1, the operating portion 4 is a substantially cylindrical body, and its axis coincides with the rotation axis C. The specific shape of the operating portion 4 is not limited to this. The protruding length from the door surface to the tip of the operating portion 4 is set so that the operator can easily operate the door handle 1.

The door handle 1 further has an operating unit 2 arranged vertically above the operating unit 4 by a predetermined distance. The operation unit 2 includes a portion with which the elbow portion of the operator who is trying to open the door is engaged. By separating the operating unit 2 vertically upward by a predetermined distance from the operating unit 4, the operator can operate the operating unit 2 using the elbow portion without bending down.

The door handle 1 further has a force transmission unit 3 that is arranged between the actuating unit 4 and the operation unit 2 and connects them. In the illustrated example, the force transmission unit 3 is composed of one long body, here a long plate member. The specific shape of the force transmission unit 3 is not particularly limited. The base end of the force transmission unit 3 is fixed to a part of the actuating unit 4, and the tip end is fixed to a part of the operation unit 2. The term "fixing" here includes both the case where the two parts are integrally molded and the case where the two members are connected by using fasteners or the like.

Although not shown, as another example, the actuating portion 4 can be formed in an L shape. In that case, it has a portion that is bent 90 ° from the tip of the actuating portion 4 of the cylindrical body shown in FIG. 1 toward the door end and extends at a predetermined length. Then, the base end of the force transmitting portion 3 can be fixed to the tip of the bent portion. According to the form of the L-shaped operating portion 4, the horizontal distance between the door side surface 21 and the operating portion 2 can be increased. As a result, when a wall or the like exists next to the door frame facing the door side surface 21, it is possible to ensure that the fingers do not hit the wall or the like when the operation unit 2 is operated by the elbow portion.

2A is a schematic perspective view of the door handle 1 shown in FIG. 1, and FIG. 2B is a schematic plan view. The operation unit 2 has a portion with which the elbow portion of the operator is engaged. The portion is configured so that the elbow portion can be easily engaged. The shape of the operation unit 2 shown in the figure is an example. The "elbow" here may be not only the "elbow" in the narrow sense but also the elbow and its surroundings, that is, the upper end region of the forearm or the lower end region of the upper arm, and a portion that is easy for each operator to use is used. Just do it. Since the operating portion 4 must rotate in order to release the latch bolt 22, it is necessary to rotate the operating portion 2. Therefore, the operating portion 2 has at least a portion with which the elbow portion engages when rotating it. The rotation axis of the operation unit 2 coincides with the rotation axis of the operation unit 4.

When opening the door, it is necessary to pull the door (push it from the opposite side of the door) while keeping the operating portion 4 in a rotated state (a state in which the latch bolt 22 is released). Therefore, the operation unit 2 includes at least a portion with which the elbow portion engages when the operation unit 2 is pulled (or pushed) in the horizontal direction in a direction away from the door 20 (or closer in the case of the opposite side of the door).

In the illustrated example, the operating unit 2 has a saddle-shaped portion connected to the upper end of the long plate member of the force transmitting unit 3. This saddle-shaped portion includes a ridge line 2a shown by a broken line, and the ridge line 2a draws a convex curve in a plane parallel to the plane of the door 20 in the mounted state. In the illustrated example, the convex curve forms a circumference, but as another example, it may be an arc, an ellipse or an elliptical arc, or an arbitrary convex curve. The concave surface 2b is formed by having a concave contour line having the ridge line 2a as a valley in the plane orthogonal to the ridge line 2a. The concave surface 2b is formed by gradually increasing in diameter in both directions perpendicular to the door 20 from the ridge line 2a, and the peripheral edges on both sides of the concave surface 2b each form a wall portion 2d. Therefore, the operation unit 2 is shaped like two trumpet outlets back to back.

In the illustrated example, the operation unit 2 has a mirror image-symmetrical shape with the surface including the ridge line 2a interposed therebetween. As another example, the operation unit 2 may have an asymmetrical shape by making the diameter of the wall portion 2d closer to the door 20 smaller than the diameter of the wall portion 2d on the side far from the door 20.

Further, the vertical distance H between the operation unit 4 and the operation unit 2, which is shown schematically, is preferably 20 to 40 cm (the same applies to the following embodiments). The distance H here is the length from the mounting position of the operating portion 4 (that is, the door handle) to the midpoint position of the vertical length of the operating portion 2 (the same applies to the following embodiments). Since the mounting position of a general door handle is about 85 to 100 cm from the floor surface, the operating position is raised by the distance H. As a result, the operator can operate the operation unit 2 while standing straight. However, since the height of the operator varies, it is not necessary to set the distance H strictly.

The distance L between the pair of wall portions 2d schematically shown in the plan view of FIG. 2B is set to a length such that the elbow portion of the assumed average operator can be easily accommodated. For example, it is about 10 cm. Similarly, the depth of the saddle-shaped portion shall be such that the elbow portion engages appropriately. For example, it is about 4 to 5 cm. However, the length is not limited to these. The recess of the operation portion 2 thus formed has a shape in which the elbow portion of the operator can easily enter, preferably at least a shape in which the elbow head can easily hit, and a shape in which the elbow portion can be easily separated. The ridge line 2a and the concave surface 2b do not have to exist over the entire circumference of the axis perpendicular to the surface of the door 20, and the angle range in which the elbow portion may hit when the operation unit 2 is rotated (FIG. FIG. It is sufficient to form it at the angle β of 2 (a)).

In the illustrated example, the tip of the force transmission unit 3 is fixed at a position closer to the door 20 on the downward surface of the operation unit 2. However, the shape of the force transmission unit 3 and its fixed position can be appropriately designed according to the shapes of the operating unit 4 and the operating unit 2.

FIG. 3 shows an example of the state of the door handle 1 shown in FIGS. 1 and 2 when the door handle 1 is operated. Preferably, the operator's elbow portion 30 is placed in the recess of the operation portion 2 and rotated as shown by the arrow I. Alternatively, even if the operator's elbow portion 30 is not completely inserted into the recess, the operator's elbow portion 30 (particularly the elbow head) is in contact with any part of the operation portion 2 (for example, the outer peripheral edge of the wall portion 2d). If so, the rotation operation is possible by friction (the same applies to other embodiments). When the elbow portion 30 is inserted into the recess, the elbow portion 30 engages with the concave surface 2b of the operation portion 2 shown in FIG.

The force applied by the operator is transmitted to the operating unit 4 via the force transmitting unit 3, and the operating unit 4 rotates as shown by arrow II. As a result, the latch release mechanism is activated, so that the latch bolt 22 is retracted and released. At that point, the door 20 is still closed. After that, when the operation unit 2 is pulled horizontally away from the door 20 as shown by the arrow III while the operating unit 4 is maintained in the rotated state, the door 20 opens as shown by the arrow IV. At this time, the elbow portion 30 engages with the wall portion 2d on the front side of the operation portion 2. Even if the elbow portion 30 is not in the recess, the operation portion 2 can be pulled horizontally by friction (the same applies to other embodiments).

After the door 20 is sufficiently opened toward the front side, the operator separates the elbow portion 30 from the operation portion 2 and passes through the other side of the door 20. The concave surface 2b of the operation portion 2 has a shape in which the elbow portion 30 is naturally easily separated. Therefore, the contact with the operation unit 2, the operation, and the withdrawal can be performed as a series of flows.

After that, if the door 20 closes automatically, the operator does not need to do anything. If the door 20 does not close automatically, the door handle 1 similarly attached to the other handle lever on the back side of the door 20 may be operated by the elbow. For example, after passing through the door 20, the elbow portion 30 may be engaged with the operation portion 2 of the door handle 1 on the back side by looking back, and the door 20 may be pulled in the closing direction. When the door 20 is closed, the latch bolt 22 is automatically retracted, so that it is not necessary to rotate the operating portion 4.

When opening the door 20 from the back side of the surface shown in FIG. 3, the door 20 is pushed to open. In that case, another door handle 1 attached to the back side of the door 20 is similarly rotated using the elbow portion to retract and release the latch bolt 22, and then the operation portion 2 is pushed horizontally as it is. This allows the door 20 to be opened.

FIG. 4 is an external perspective view schematically showing an example of the door handle 1A according to the second embodiment of the present invention together with a part of the door 20.

The door handle 1A is attached to the door surface of the door 20 by the operating portion 4 as in the first embodiment, and has an operating portion 2 and a force transmitting portion 3 having the same shape. The difference from the first embodiment is that the operating unit 2 is not located vertically above the operating unit 4. In the second embodiment, the operation unit 2 has a predetermined distance in a plane parallel to the surface of the door 20 in a direction forming a predetermined angle α on the door tail side of the door 20 with respect to the vertical upper direction from the operating unit 4. They are placed apart. Therefore, in this case, the force transmission unit 3 is provided so as to be inclined with respect to the vertical direction. The angle α is preferably 45 ° or less.

This embodiment is effective when there is a wall or the like next to the door frame facing the door side surface 21. This is because the distance from such a wall or the like to the operation unit 2 becomes longer, so that it becomes difficult for the fingers or the like to hit the wall or the like when operating the operation unit 2 with the elbow portion. The features of this second embodiment are also applicable to the following other embodiments.

Also in the second embodiment, the distance H in the vertical direction between the operating unit 4 and the operating unit 2 is preferably 20 to 40 cm.

5 (a) is a schematic partial perspective view of an example of a door handle 1B according to a third embodiment of the present invention, and (b) and (c) are schematic partial perspective views of a modified form of (a). Is.

The actuating portion (not shown) has an appropriate shape that can be attached to the door surface and can be connected to the latch release mechanism. The force transmission unit 3 is one long plate member in this example. The operation unit 2 is connected to the upper end of the force transmission unit 3.

In this example, the portion of the operation portion 2 with which the elbow portion of the operator engages has a convex surface 2c having a substantially cylindrical surface and a wall portion 2d standing up from both ends thereof, and a depression is formed by these. This embodiment has a relatively simple shape. The convex surface 2c of the substantially cylindrical surface does not have to exist over the entire circumference of the operation unit 2, and it is sufficient if the convex surface 2c is formed in an angle range in which the elbow portion may hit when the operation unit 2 is rotated. In the illustrated example, the convex surface 2c has only the upper half of the cylinder. When the operation unit 2 is pulled horizontally away from the door 20, the elbow portion of the operator engages with the wall portion 2d on the front side of the operation unit 2. It suffices if the wall portion 2d is also provided in a range where the elbow portion engages.

In the door handles 1Ba and 1Bb of the modified forms of FIGS. 5 (b) and 5 (c), a substantially cylindrical convex surface 2c of the operation portion 2 is formed within a range of about 90 °, and the wall portions 2d on both sides thereof are upward. It is inclined outward so that it becomes wider toward it. Further, a return portion 2d1 having a rounded shape and projecting outward is provided on the outer peripheral edge of the wall portion 2d. The presence of the return portion 2d1 facilitates engagement of the operator's elbow portion. The width of the force transmission unit 3 is different between FIGS. 5 (b) and 5 (c).

FIG. 6A is an external perspective view schematically showing an example of the door handle 1C according to the fourth embodiment of the present invention together with a part of the door 20. (B) shows another door handle 1C attached to the back side of the door 20.

In the fourth embodiment, the actuating portion 4 of the door handle 1C is attached to the door surface of the door 20 using the same attachment structure as a general push-pull handle. Here, too, the actuating portion 4 is connected to the latch release mechanism provided inside the door 20. In the illustrated example, the main body of the operating portion 4 has a square plate shape, but there are various other forms such as a vertically long rod shape.

In a general push-pull handle, when the push-pull handle is pushed or pulled, the latch bolt 22 is retracted and released, and when the push handle is further pushed or pulled, the door 20 can be opened. Similarly, by pushing or pulling the actuating portion 4 of the door handle 1C, the latch release mechanism inside the door 20 can be activated to release the latch bolt 22. The operating unit 4 is connected to the operating unit 2 located vertically above via the force transmitting unit 3.

As shown in FIG. 6A, when the elbow portion (not shown) is engaged with the wall portion 2d in front of the operation portion 2 and pulled as shown by the arrow I, the force is transmitted through the force transmission portion 3. Then, the operating portion 4 is also pulled as shown by the arrow II. As a result, the latch bolt 22 retracts, and the door 20 can be opened by pulling the wall portion 2d of the operation portion 2 in the horizontal direction as it is.

As shown in FIG. 6B, on the back side of the door 20, when the elbow portion (not shown) is engaged with the operation portion 2 and pushed as shown by the arrow III, the force is applied through the force transmission portion 3. It is transmitted and the operating portion 4 is also pushed as shown by the arrow IV. At this time, the elbow portion may be inserted into the operation portion 2 and the wall portion 2d on the side close to the door 20 may be pushed, but instead, the outer surface of the wall portion 2d on the front side may be pushed. As a result, the latch bolt 22 is retracted and released, and the door 20 can be opened by pushing the operation unit 2 toward the door 20 in the horizontal direction as it is.

7 (a) is a partial perspective view schematically showing an example of a door handle 1D according to a fifth embodiment of the present invention, and FIG. 7 (b) is a sectional view taken along the line xx of (a). (C) is a modified form. The moving part is not shown. The force transmission unit 3 is formed of one plate member as an example, but can be configured in various ways.

In each of the above-described embodiments, the operation unit 2 has a concave surface 2b or a convex surface 2c into which the elbow portion is inserted, and a pair of wall portions 2d on both sides thereof. As described in each embodiment, when the operation unit 2 is pulled toward the front, the elbow portion can be engaged with the wall portion 2d on the front side and pulled. Further, when pushing the operation portion 2 to the other side, the elbow portion can be engaged with the wall portion 2d on either the side near the door or the front side and pushed.

From this, in order to pull or push the operation unit 2, it is sufficient to have at least the wall portion 2d on the front side (the side far from the door). In the fifth embodiment, the operation unit 2 has only the front wall portion 2d. That is, it can be said that the operation unit 2 shown in FIG. 7A is a shape obtained by vertically dividing the shape of two trumpet outlets 2 shown in FIG. 2 back to back. A concave surface 2b formed by gradually increasing in diameter from the peripheral edge of a circular end surface located in a plane parallel to the surface of the door 20 toward the direction perpendicular to the door 20, and a wall portion formed by the peripheral edge portion of the concave surface 2b. Has 2d and.

Preferably, the outer peripheral edge of the wall portion 2d is provided with a rounded return portion 2d1 that projects inward. The presence of the return portion 2d1 facilitates engagement of the operator's elbow portion.

As shown in the modified form of the door handle 1Da in FIG. 7C, the concave surface 2b may be replaced with a substantially cylindrical convex surface 2c. In that case, it has a substantially cylindrical convex surface 2c having an axis in a direction perpendicular to the door 20 and a wall portion 2d rising from an end portion of the convex surface 2c opposite to the door 20. In the illustrated example, the substantially cylindrical convex surface 2c is provided over the entire circumference around the axis, but may be provided in a predetermined angle range instead.

Although not shown, as a general door handle, there is a type in which the door handle is pushed from above and displaced in the vertical direction to release the latch. The mounting structure of the door handle that is displaced in the vertical direction can also be adopted as the mounting structure of the operating portion 4 of the door handle of the present invention. In that case, the latch can be released by pushing the operation unit 2 vertically downward using the elbow portion.

The door handles of each embodiment described above can be attached to a variety of existing doors. An embodiment in which the characteristic configurations of each embodiment are combined is also included in the present invention. Further, as long as it is in line with the gist of the present invention, a wider variety of modified forms are possible.

1, 1A, 1B, 1C, 1D Door handle 2 Operation part 3 Force transmission part 4 Acting part 20 Door 21 Door side 22 Latch bolt 23 Case 24 Latch release mechanism 30 Elbow part

Claims (8)

At least in the door handles ((1,1A, 1B, 1C, 1D) used to open the door (20) secured in the closed position by the latch bolt (22).
An actuating part (4) attached to the door surface so as to be connected to a latch release mechanism provided inside the door (20),
It is arranged vertically above the operating portion (4) or at an angle (α) of 45 ° or less on the door tail side of the door (20) with respect to the vertically upward position by a predetermined distance and operated. An operation unit (2) having a part where the person's elbow is engaged, and
It has a force transmission unit (3) that connects the operating unit (4) and the operating unit (2).
When the operation unit (2) is operated by the elbow of the operator, the latch release mechanism is operated via the force transmission unit (3) and the operation unit (4), thereby operating the latch bolt (22). Door handle characterized by being released. The portion of the operation portion (2) with which the operator's elbow is engaged is the portion (2d) with which the elbow is engaged when the operation portion (2) is pulled horizontally away from the door (20). The door handle according to claim 1, wherein the door handle is provided at least. The portion of the operation portion (2) with which the elbow portion of the operator engages includes at least a portion (2b, 2c, 2d) with which the elbow portion engages when the operation portion (2) is rotated. The door handle according to claim 1 or 2, wherein the door handle is characterized. The portion of the operation portion (2) where the operator's elbow is engaged has a saddle-shaped portion, and the saddle-shaped portion has a ridge line (a convex curve) that draws a convex curve in a plane parallel to the surface of the door (20). 2a), a concave surface (2b) formed by gradually increasing in diameter in both directions perpendicular to the door (20) from the ridge line (2a), and peripheral portions on both sides of the concave surface (2b), respectively. The door handle according to claim 2 or 3, wherein the door handle is provided with a wall portion (2d). The portion of the operation portion (2) with which the operator's elbow is engaged is perpendicular to the door (20) from the peripheral edge of the circular end surface and the circular end surface located in the plane parallel to the surface of the door (20). 2. Door handle described in. The portion of the operation portion (2) with which the operator's elbow is engaged has a substantially cylindrical convex surface (2c) having an axis in the direction perpendicular to the door (20) and a door (20) on the convex surface (2c). The door handle according to claim 2 or 3, wherein the door handle is provided with a wall portion (2d) rising from an end opposite to the door. The door handle according to any one of claims 1 to 6, wherein the actuating portion (4) activates the latch release mechanism by performing any operation of rotation, push-pull, or vertical displacement. The door handle according to any one of claims 1 to 7, wherein the distance between the operating portion (4) and the operating portion (2) in the vertical direction is 20 to 40 cm.

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