Operator handle

Abstract

To provide an operator handle that is easy to use.SOLUTION: An operator handle 5 provided in a fitting 1 having a frame body 2 and a sash 3 rotatably supported on the frame body 2 includes a rotatable handle part 52. The handle part 52 is rotated to make the sash 3 rotate around a rotation axis, thereby allowing the sash 3 to open / close. An opening angle of the sash 3 when the handle part 52 is rotated once is a unit rotation sash angle. When the handle part 52 is rotated, the unit rotation sash angle of the sash 3 in an initial stage of a rotation operation range of the handle part 52 is an initial unit rotation sash angle. The unit rotation sash angle of the sash 3 in an intermediate stage of the rotation operation range of the handle part 52 is an intermediate unit rotation sash angle. A ratio of the initial unit rotation sash angle to the intermediate unit rotation sash angle is 1.0 to 1.4.SELECTED DRAWING: Figure 10

Description

Technical Field

[0001] This disclosure relates to an operator handle.

Background Art

[0002] Conventionally, for example, in a vertical sliding window, it is known to open and close a shoji door with an operator handle. The operator handle rotates a handle portion attached to a frame body, and through a gear mechanism, opens and closes the shoji door of the window. In some operator handles, the structure of the handle part of the handle is configured to be easy for anyone to use (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The operator handle described in Patent Document 1 has devised the structure of the handle part of the handle. However, in view of the whole handle, it cannot necessarily be said that it is easy to use, such as the physical burden due to the rotational torque during rotation, the wobbling of the handle, and the unstable movement of the shoji door.

[0005] An object of this disclosure is to provide an operator handle that is easy to use.

Means for Solving the Problems

[0006] This disclosure relates to an operator handle provided on a joinery comprising a frame and a sliding door rotatably supported by the frame, wherein the operator handle has a rotatable handle portion, and the handle portion can be rotated to open and close the sliding door by rotating the sliding door around a rotation axis, and the opening angle of the sliding door when the handle portion makes one rotation is defined as the unit rotation sliding door angle, and when the handle portion is rotated, the initial unit rotation sliding door angle of the sliding door at the beginning of the rotation range of the handle portion is defined as the initial unit rotation sliding door angle, and the intermediate unit rotation sliding door angle of the sliding door at the middle of the rotation range of the handle portion is defined as the intermediate unit rotation sliding door angle, wherein the ratio of the initial unit rotation sliding door angle to the intermediate unit rotation sliding door angle is 1.0 to 1.4. [Brief explanation of the drawing]

[0007] [Figure 1] This is a front view from the interior of a vertical sliding window to which an operator handle of one embodiment is attached. [Figure 2] This is a cross-sectional view taken along line AA in Figure 1. [Figure 3] This is a cross-sectional view taken along line BB in Figure 1. [Figure 4] This is a diagram showing the configuration of the stay. [Figure 5] This graph shows the relationship between the number of rotations of the operator handle and the sliding door opening angle in Example 1. [Figure 6] This graph shows the relationship between the number of rotations of the operator handle and the sliding door opening angle in Example 2. [Figure 7] This graph shows the relationship between the number of rotations of the operator handle and the sliding door opening angle in Example 3. [Figure 8] This graph shows the relationship between the number of rotations of the operator handle and the sliding door opening angle in Comparative Example 1. [Figure 9] This graph shows the relationship between the number of rotations of the operator handle and the sliding door opening angle in Comparative Example 2. [Figure 10]This graph shows the relationship between the ratio of the initial unit rotation angle of the sliding door to the midpoint of the rotational operating range of the handle and the number of high-scoring evaluations in Examples 1-3 and Comparative Examples 1 and 2. [Modes for carrying out the invention]

[0008] The embodiments of this disclosure will now be described in detail with reference to the drawings. As shown in Figures 1 to 3, the operator handle 5 is provided on the lower frame of the sash frame, which is a building fixture, to open and close the sliding door that opens and closes relative to the frame. The sliding door can be opened and closed by rotating the handle portion 52 of the operator handle 5.

[0009] The following describes a vertical sliding window 1 as a building fixture equipped with an operator handle according to the embodiment. As shown in Figures 1 to 3, the vertical sliding window 1 has a frame 2 attached to an opening in the building structure, a sash 3 rotatably supported on the inner circumference side of the frame 2, an operator handle 5, and a locking mechanism 6. The frame 2 is constructed by framing an upper frame 21, a lower frame 22, and a pair of vertical frames 23, 24 in a rectangular shape.

[0010] The shoji screen 3 is positioned on the inner circumference of the frame 2 so as to be openable and closable. The shoji screen 3 is configured to open and close the opening of the frame 2 by rotating around a pivot axis provided on the hinge side. The shoji screen 3 is constructed by housing a glass panel 35, which consists of one or more glass plates, inside a frame that is framed in a rectangular shape with an upper frame 31, a lower frame 32, and left and right vertical frames 33, 34.

[0011] As shown in Figures 1 and 2, a pair of stays 36 are provided at the top and bottom of the shoji screen 3 to support the opening and closing operation of the shoji screen 3. One stay 36 is spanned between the upper frame 31 and the upper frame 21, and the other stay 36 is spanned between the lower frame 32 and the lower frame 22.

[0012] Stay 36 can hold the opening angle of the shoji 3 at an arbitrary angle. As shown in FIG. 4, the stay 36 includes a frame plate 361, a shoji plate 362, an arm member 363, and a slide member 364.

[0013] The frame plate 361 is arranged along the longitudinal direction of each of the upper frame 21 and the lower frame 22, and is attached to each of the upper frame 21 and the lower frame 22. The shoji plate 362 is arranged along the longitudinal direction of each of the upper frame 31 and the lower frame 32 of the shoji 3, and is attached to each of the upper frame 31 and the lower frame 32 of the shoji 3.

[0014] The arm member 363 connects a portion on the end side of the hanging end of the frame plate 361 and an intermediate portion 362a in the longitudinal direction of the shoji plate 362. A rotating shaft 363a provided at one end of the arm member 363 is rotatably connected to a portion on the end side of the hanging end of the frame plate 361 by caulking. The other end portion 363b of the arm member 363 is rotatably connected to the intermediate portion 362a in the longitudinal direction of the shoji plate 362 by caulking.

[0015] The slide member 364 has a slide piece 364a arranged at one end and an end rotating shaft 364b arranged at the other end. The slide piece 364a is rotatable while moving along a slide groove 361a formed in the frame plate 361. The end rotating shaft 364b is rotatably connected to an end portion 362b on the side of the frame plate 361 of the shoji plate 362 by caulking.

[0016] Thereby, the shoji 3 can be opened and closed by rotating around the rotating shaft 363a provided on the hanging end side while being drawn out by a pair of stays 36 provided vertically.

[0017] As shown in FIGS. 1 and 3, the lock mechanism 6 is provided on the vertical frame 23 of the frame body 2. As shown in FIG. 3, the lock mechanism 6 restricts the opening and closing operation of the shoji 3 by locking a lock plate 61 extending in the indoor-outdoor direction to a lock pin 62 attached to the vertical frame 33.

[0018] The operator handle 5 is provided on the lower frame 22 of the frame body 2. As shown in FIG. 2, the operator handle 5 includes a handle portion 52 having a handle grip portion 51, and a gear mechanism portion 53 having a gear portion 531 and a transmission plate 532.

[0019] As shown in FIG. 2, the handle portion 52 is attached to the gear mechanism portion 53 in a state inclined with respect to the rotation axis J. By gripping the handle grip portion 51 and rotating the handle portion 52 about the rotation axis J, a rotational force is transmitted to the shutter 3 via the gear mechanism portion 53. By rotating the handle portion 52 a plurality of times, the shutter 3 is rotated about the rotation axis, thereby changing the opening / closing angle of the shutter 3, and the shutter 3 can be opened and closed.

[0020] In the case of gripping the handle grip portion 51 and rotating the handle portion 52 of the operator handle 5 of the present embodiment, the average rotational torque from fully closing to fully opening the shutter 3 is 260 N·mm or less.

[0021] The rotational torque of the operator handle 5 from fully closing to fully opening the shutter 3 can be adjusted, for example, by changing the resistance value when the shutter 3 starts to move from when it is closed. The change in the resistance value when the shutter 3 starts to move can be performed, for example, by changing the structure of the gear mechanism portion 53, changing the weight of the glass panel 35 of the shutter 3, changing the structure of the stay 36 that supports the upper and lower portions of the shutter 3, and the like.

[0022] Regarding the rotational torque of the operator handle 5, the design of the structure of the stay 36 can be performed, for example, by adjusting the tightening degree of the caulking of the joint portion of the stay 36, adjusting the attachment position between the shutter 3 and the stay 36 in consideration of the operating load based on the lever principle, changing the material of the slide member 364 and the frame plate 361 of the stay 36, adjusting the amount of grease between the slide member 364 and the frame plate 361 of the stay 36, and the like.

[0023] Furthermore, in this embodiment, it is preferable that the number of rotations of the handle portion 52 when rotating the handle portion 52 to move the sliding door 3 from fully closed to fully open is 11 rotations or less. The number of rotations of the handle portion 52 when rotating the handle portion 52 to move the sliding door 3 from fully closed to fully open can be adjusted, for example, by changing the gear ratio of the gear mechanism portion 53.

[0024] Furthermore, in this embodiment, the operator handle 5 has an initial unit rotation angle of the sliding door 3 at the beginning of the rotational operating range of the handle 52 (the opening angle of the sliding door 3 when the handle 52 rotates once), and an intermediate unit rotation angle of the sliding door 3 at the middle of the rotational operating range of the handle 52 (the opening angle of the sliding door 3 when the handle 52 rotates once). The ratio of the initial unit rotation angle of the sliding door at the beginning to the intermediate unit rotation angle at the middle of the rotational operating range of the handle 52 (initial unit rotation angle / intermediate unit rotation angle) is 1.0 to 1.4. Details of the initial unit rotation angle and intermediate unit rotation angle of the handle 52 will be described later.

[0025] The ratio of the initial unit rotation angle of the sliding door at the beginning to the intermediate unit rotation angle at the middle of the rotational operating range of the handle part 52 (initial unit rotation angle / intermediate unit rotation angle of the sliding door) can be adjusted, for example, by changing the resistance value when the sliding door 3 starts moving from a closed position. The resistance value when the sliding door 3 starts moving can be changed, for example, by redesigning the structure of the gear mechanism part 53, changing the weight of the glass panel 35 of the sliding door 3, or redesigning the structure of the stays 36 that support the top and bottom of the sliding door 3.

[0026] Regarding the adjustment of the ratio of the initial unit rotation angle of the sliding door at the beginning to the intermediate unit rotation angle of the sliding door at the middle of the rotational operating range of the handle portion 52 (initial unit rotation angle / intermediate unit rotation angle of the sliding door), the design of the structure of the stay 36 can be done, for example, by changing the material of the sliding member 364 and the frame plate 361 of the stay 36, or by adjusting the amount of grease between the sliding member 364 and the frame plate 361 of the stay 36.

[0027] Next, an evaluation test was conducted to verify the effectiveness of the operator handle according to the above-described embodiment. The present disclosure will now be described in detail based on the operator handles of Examples 1-3 and Comparative Examples 1 and 2. However, the present disclosure is not limited to the following embodiments.

[0028] Table 1 shows the values ​​for the operator handles in Examples 1-3 and Comparative Examples 1 and 2.

[0029] In the following Examples 1-3 and Comparative Examples 1 and 2, a three-axis force sensor USL06-H5-50N manufactured by Tech Gihan was used to measure the rotational torque of the handle 52. The rotational torque was measured by measuring the torque values ​​of the three axes using the three-axis force sensor, and the output values ​​from the three-axis force sensor were corrected to obtain the rotational torques FHx, FHy, and FHz. Since the rotational torque of the handle 52 is the rotational torques FHx and FHy contributing to the rotation of the handle 52, the rotational torque of the resultant force of the operating force during rotation = √{(FHx)} 2 +(FHy) 2 It was calculated using}.

[0030] Furthermore, a three-axis gyro sensor GSAT-A-900 manufactured by Kyowa Electric Industry was used to measure the opening angle of the shoji screen 3. The method for measuring the opening angle of the shoji screen 3 involved measuring the opening angle of the shoji screen 3 using the three-axis gyro sensor in response to the rotation operation. The rotation operation was performed manually by the person in charge, and the rotation was performed at a speed of 1 rotation per second in rhythm with a metronome.

[0031] [Table 1]

[0032] The operator handles of Examples 1 to 3 have the structure of the operator handle 5 described above, and all have a turning radius of 47 mm. The operator handles of Comparative Examples 1 and 2 have a different structure from the operator handle 5 of Examples 1 to 3, and have turning radii of 47 mm and 50 mm, respectively.

[0033] The operator handle of Example 1 has an average rotational torque of 181.71 N·mm when rotating the sliding door from fully closed to fully open, a rotation count of 9.14 when rotating the sliding door from fully closed to fully open, and an operator handle with a ratio of the initial unit rotation angle of the sliding door to the midpoint of the rotational range of the handle (initial unit rotation angle of the sliding door / intermediate unit rotation angle of the sliding door) of 1.17.

[0034] The operator handle of Example 2 has an average rotational torque of 250.72 N·mm when rotating the sliding door from fully closed to fully open, a rotation count of 9.56 when rotating the sliding door from fully closed to fully open, and a ratio of the initial unit rotation angle of the sliding door at the beginning to the intermediate unit rotation angle of the sliding door at the middle of the rotation range of the handle (initial unit rotation angle of the sliding door / intermediate unit rotation angle of the sliding door) of 1.31.

[0035] The operator handle of Example 3 has an average rotational torque of 255.40 N·mm when rotating the sliding door from fully closed to fully open, a rotation count of 10.98 when rotating the sliding door from fully closed to fully open, and a ratio of the initial unit rotation angle of the sliding door at the beginning to the intermediate unit rotation angle of the sliding door at the middle of the rotational operating range of the handle (initial unit rotation angle of the sliding door / intermediate unit rotation angle of the sliding door) of 1.11.

[0036] The operator handle of Comparative Example 1 has an average rotational torque of 391.05 N·mm when rotating the sliding door from fully closed to fully open, a rotation count of 7.94 when rotating the sliding door from fully closed to fully open, and an operator handle with a ratio of the initial unit rotation angle of the sliding door to the midpoint of the rotational range of the handle (initial unit rotation angle of the sliding door / intermediate unit rotation angle of the sliding door) of 1.84.

[0037] The operator handle in Comparative Example 2 has an average rotational torque of 298.68 N·mm when rotating the sliding door from fully closed to fully open, a rotation count of 11.27 when rotating the sliding door from fully closed to fully open, and an operator handle with a ratio of the initial unit rotation angle of the sliding door to the midpoint of the rotational range of the handle (initial unit rotation angle of the sliding door / intermediate unit rotation angle of the sliding door) of 2.12.

[0038] Here, we will explain the ratio of the initial unit rotation angle of the sliding door to the midpoint of the rotational operating range of the handle (initial unit rotation angle of the sliding door / midpoint unit rotation angle of the sliding door) in Examples 1 to 3 and Comparative Examples 1 and 2. As shown in Figures 5 to 9, for the operator handles of Examples 1 to 3 and Comparative Examples 1 and 2, when the sliding door is opened and closed by rotating the handle, the horizontal axis represents the number of rotations of the handle and the vertical axis represents the opening angle of the sliding door, as shown in Figures 5 to 9.

[0039] In Figures 5 to 9, we observed a difference between the sliding door opening angle at the initial 0.1 rotation of the operator handle's rotational range and the sliding door opening angle at the intermediate 4-6 rotations (2 rotations). We hypothesized that a smaller difference would increase the likelihood of the operator handle moving as intended and being easy to use. Therefore, we calculated the sliding door opening angle at the initial 0.1 rotation of the operator handle's rotational range and the sliding door opening angle at the intermediate 4-6 rotations (2 rotations), and calculated the ratio of the initial unit rotation sliding door angle to the intermediate unit rotation sliding door angle (initial unit rotation sliding door angle / intermediate unit rotation sliding door angle). The data obtained from the graphs in Figures 5 to 9 are shown in Table 2.

[0040] [Table 2]

[0041] In this embodiment, the initial range of rotation of the operator handle refers to the first rotation of the operator handle after a predetermined number of rotations from the start of the rotation operation. For example, the initial range of rotation of the operator handle is preferably in the range of 0.1 to 1.0 rotations from the start of the rotation operation.

[0042] Furthermore, the intermediate range of rotation of the operator handle refers to the middle stage between the beginning and end of the rotation of the operator handle when rotating the shoji screen from fully closed to fully open. For example, the intermediate range of rotation of the operator handle is preferably in the range of 20 to 80% of the total number of rotations of the handle when rotating the shoji screen from fully closed to fully open.

[0043] For example, in Examples 1-3 and Comparative Examples 1 and 2, 20-80% of the total 9.14 rotations (Example 1) is 1.83-7.31 rotations, 20-80% of the total 9.56 rotations (Example 2) is 1.91-7.65 rotations, 20-80% of the total 10.98 rotations (Example 3) is 2.20-8.78 rotations, 20-80% of the total 7.94 rotations (Comparative Example 1) is 1.59-6.35 rotations, and 20-80% of the total 11.27 rotations (Comparative Example 2) is 2.25-9.02 rotations. The intermediate range in this embodiment is 4-6 rotations, which is within the range of 20-80% of the total number of rotations of the handle when rotating the shoji screen from fully closed to fully open.

[0044] In the graphs of Figures 5 to 9, the opening angle of the sliding door during the initial 0.1 rotation of the operator handle's rotational operating range is 0.95 deg, 0.93 deg, 0.64 deg, 1.51 deg, and 1.33 deg for Examples 1 to 3 and Comparative Examples 1 and 2, respectively, as shown in Table 2. Converting the opening angle of the sliding door during the initial 0.1 rotation of the handle's rotational operating range to the opening angle of the sliding door after one rotation, the initial unit rotation sliding door angle for Examples 1 to 3 and Comparative Examples 1 and 2 is 9.51 deg / rotation, 9.25 deg / rotation, 6.42 deg / rotation, 15.14 deg / rotation, and 13.28 deg / rotation, respectively.

[0045] Furthermore, the sliding door opening angles for two rotations of the operator handle, which fall between 4 and 6 rotations in the middle of the handle's rotational operating range, are 16.28deg, 14.15deg, 11.59deg, 16.48deg, and 12.51deg for Examples 1-3 and Comparative Examples 1 and 2, respectively, as shown in Table 2. Converting the sliding door opening angles for two rotations in the middle of the handle's rotational operating range to the sliding door opening angle for one rotation, the unit rotation sliding door angles in the middle of the handle's rotational operating range for Examples 1-3 and Comparative Examples 1 and 2 are 8.14deg / rotation, 7.07deg / rotation, 5.79deg / rotation, 8.24deg / rotation, and 6.25deg / rotation, respectively.

[0046] In this way, the opening angle of the sliding door when the handle rotates once is defined as the unit rotation sliding door angle. When the handle is rotated, the initial unit rotation sliding door angle is calculated by converting the opening angle of the sliding door at the beginning of the handle's rotation range to the unit rotation sliding door angle, and the intermediate unit rotation sliding door angle is calculated by converting the opening angle of the sliding door at the middle of the handle's rotation range to the unit rotation sliding door angle. Thus, the initial unit rotation sliding door angle of the sliding door at the beginning of the handle's rotation range is defined as the initial unit rotation sliding door angle, and the intermediate unit rotation sliding door angle of the sliding door at the middle of the handle's rotation range is defined as the intermediate unit rotation sliding door angle. Based on this, the ratio of the initial unit rotation sliding door angle to the middle of the handle's rotation range (initial unit rotation sliding door angle / intermediate unit rotation sliding door angle) can be calculated.

[0047] Here, we had subjects operate the operator handles of Examples 1-3 and Comparative Examples 1 and 2, and asked 21 subjects to rate each of the operator handle evaluation items—"heavy-light," "slow-opening-fast," and "does not work as intended-works as intended"—on a scale of 1 to 5. Analysis from the perspective of "ease of use" revealed that "heavy-light," "slow-opening-fast," and "does not work as intended-works as intended" are important factors in determining the "ease of use" of an operator handle. Therefore, in the following evaluations of operator handles, we conducted evaluation tests using "heavy-light," "slow-opening-fast," and "does not work as intended-works as intended" as evaluation items. The results obtained for each evaluation item are shown in Tables 3 to 5 in order, along with an explanation of their contents.

[0048] [Table 3]

[0049] Table 3 shows the distribution of the number of subjects who felt the operator handle did not move as intended or moved as intended. Since the evaluation item "Does not move as intended or moves as intended" is expected to be related to the ratio of the initial unit rotation angle to the midpoint of the handle's rotation range (initial unit rotation angle / midpoint unit rotation angle), scores were compiled focusing on the "ratio of the initial unit rotation angle to the midpoint of the handle's rotation range" for the operator handles in Examples 1-3 and Comparative Examples 1 and 2. In the "Does not move as intended or moves as intended" evaluation, a low score was given when the subject felt the handle did not move as intended, and a high score was given when the subject felt it moved as intended.

[0050] In Table 3, in Examples 1 to 3 where the "ratio of the initial unit rotation angle to the midpoint of the rotational operating range of the operator handle" is 1.31 or less, in Example 1 (ratio of the initial unit rotation angle to the midpoint of the rotational operating range of the handle: 1.17), the proportion of people who gave a score of 4 or 5 was 95% of the total number of people; in Example 2 (ratio of the initial unit rotation angle to the midpoint of the rotational operating range of the handle: 1.31), the proportion of people who gave a score of 4 or 5 was 90% of the total number of people; and in Example 3 (ratio of the initial unit rotation angle to the midpoint of the rotational operating range of the handle: 1.11), the proportion of people who gave a score of 4 or 5 was 76% of the total number of people, all of which received a "〇" rating.

[0051] Furthermore, Figure 10 shows a graph plotting the distribution of "does not work as intended - works as intended" based on the values ​​in Table 3. In Figure 10, the horizontal axis is the ratio of the initial unit rotation angle of the handle to the midpoint of the handle's rotation range (initial unit rotation angle / intermediate unit rotation angle), and the vertical axis is the total number of people with 4 points and 5 points in Table 3. Here, in Figure 10, an approximate line La is added to the scatter plots plotting the values ​​for Examples 1-3 and Comparative Examples 1 and 2. In Figure 10, when the ratio of the initial unit rotation angle of the handle to the midpoint of the handle's rotation range (initial unit rotation angle / intermediate unit rotation angle) is 1.4 or less along the approximate line La, the total number of people with 4 points and 5 points exceeds 15 (71%), indicating that good operability can be obtained with operator handles where the "ratio of the initial unit rotation angle to the midpoint of the handle's rotation range" is 1.4 or less.

[0052] Furthermore, as a design principle, it is preferable that the lower limit of the "ratio of the initial unit rotation angle of the sliding door to the midpoint of the rotational operating range of the handle" be 1.0 or greater. Therefore, it is preferable to use an operator handle in which the "ratio of the initial unit rotation angle of the sliding door to the midpoint of the rotational operating range of the handle" is 1.0 to 1.4.

[0053] Thus, in the operator handles of Examples 1 to 3, where the "ratio of the initial unit rotation angle to the midpoint of the handle's rotational operating range" is 1.0 to 1.4, many subjects felt that the handle moved as intended. Therefore, in the evaluation test, regarding the "ratio of the initial unit rotation angle to the midpoint of the handle's rotational operating range" of the operator handle, we were able to obtain the result that operator handles with a "ratio of the initial unit rotation angle to the midpoint of the handle's rotational operating range" of 1.0 to 1.4 were operator handles with improved operability.

[0054] Furthermore, looking at the details of each value in Examples 1 to 3 in Figure 10, when the ratio of the initial unit rotation angle of the sliding door to the middle of the rotational operating range of the handle (initial unit rotation angle of the sliding door / middle unit rotation angle of the sliding door) is 1.11 to 1.31, the total number of people who scored 4 points and 5 points in all of Examples 1 to 3 is 16 or more (76% or more), indicating that operator handles with a "ratio of the initial unit rotation angle of the sliding door to the middle of the rotational operating range of the handle" of 1.11 to 1.31 can be used to obtain better operability.

[0055] Thus, in the operator handles of Examples 1 to 3, where the "ratio of the initial unit rotation angle to the midpoint of the handle's rotational operating range" is between 1.11 and 1.31, more subjects felt that the handle moved as intended. Therefore, in the evaluation test, regarding the "ratio of the initial unit rotation angle to the midpoint of the handle's rotational operating range" of the operator handle, we were able to obtain the result that operator handles with a "ratio of the initial unit rotation angle to the midpoint of the handle's rotational operating range" of 1.11 to 1.31 are operator handles with improved operability.

[0056] [Table 4]

[0057] Table 4 shows the distribution of the number of subjects who felt the operator handle was opening slowly or quickly. Since the evaluation item "opening slowly or quickly" is assumed to be related to the number of rotations of the handle 52 when rotating the handle 52 from fully closed to fully open, the scores were compiled focusing on the "number of handle rotations" of the operator handles in Examples 1-3 and Comparative Examples 1 and 2. A lower score was given when the subject felt the handle was opening slowly, and a higher score was given when the subject felt it was opening quickly.

[0058] In Table 4, in Examples 1 to 3, the percentage of people who gave a score of 4 or 5 in Example 1 (handle rotations: 9.14) was 86% of the total number of people, the percentage who gave a score of 4 or 5 in Example 2 (handle rotations: 9.56) was 52%, and the percentage who gave a score of 4 or 5 in Example 3 (handle rotations: 10.98) was also 52%, all receiving a "〇" rating. This indicates that good operability can be obtained with operator handles that have 11 rotations or less.

[0059] Thus, in the operator handles of Examples 1 to 3, where the number of rotations of the handle part 52 when rotating the handle part from fully closed to fully open is 11 rotations or less, many subjects felt that the shoji screen opened too quickly. Therefore, in the evaluation test, regarding the number of rotations of the operator handle, we were able to obtain the result that the operator handles with a rotation number of 11 rotations or less of the handle part 52 had an improved feel. Furthermore, in the case where the number of rotations of the handle part 52 was 9.14 rotations, the proportion of people who gave a score of 4 or 5 in Example 1 was 86% of the total number of people, so we were able to obtain the result that this was an operator handle with an even more improved feel.

[0060] [Table 5]

[0061] Table 5 shows the distribution of the number of subjects who felt the operator handle was "heavy-light" in the evaluation criteria. Since the evaluation criterion for "heavy-light" is expected to be related to the magnitude of the "average rotational torque" value of the operator handle, the scores were compiled focusing on the "average rotational torque" of the operator handles in Examples 1-3 and Comparative Examples 1 and 2. In the "heavy-light" category, a low score was given when the subject felt it was "heavy," and a high score was given when the subject felt it was "light."

[0062] In Table 5, in Examples 1 to 3, where the average rotational torque was 260 N·mm or less, the proportion of people who gave a score of 4 or 5 in Example 1 (average rotational torque: 181.71 N·mm) was 100% of the total number of people, the proportion of people who gave a score of 4 or 5 in Example 2 (average rotational torque: 250.72 N·mm) was 81% of the total number of people, and the proportion of people who gave a score of 4 or 5 in Example 3 (average rotational torque: 255.40 N·mm) was 95% of the total number of people, all of which received a "〇" rating.

[0063] Thus, in Examples 1-3, where the average rotational torque of the shoji screen was 260 N·mm or less, many subjects felt that opening the shoji screen was easy. Therefore, in the evaluation test, regarding the average rotational torque of the operator handle, we were able to obtain the result that the operator handles with an average rotational torque of 260 N·mm or less were operator handles that improved the feel of operation.

[0064] This embodiment provides the following advantages. In this embodiment, the ratio of the initial unit rotation angle of the operator handle 5 to the intermediate position is 1.0 to 1.4. This makes it easier for the subject to feel that the handle 52 moves as intended when operating it. As a result, it is possible to create an operator handle 5 with improved operability. Therefore, it is possible to create an easy-to-use operator handle 5.

[0065] Furthermore, when the ratio of the initial unit rotation angle of the operator handle 5 to the middle position is between 1.11 and 1.31, the subject is more likely to feel that the handle 52 moves as intended when operating it. As a result, it is possible to create an operator handle 5 with improved operability. Therefore, it is possible to create an operator handle 5 that is easier to use.

[0066] Furthermore, in this embodiment, the number of rotations of the handle 52 when rotating the handle 52 from fully closed to fully open the shoji screen 3 is 11 rotations or less. When the number of rotations of the handle 52 is 11 rotations or less, many subjects feel that the number of rotations of the handle 52 is fast enough to open the shoji screen 3. Therefore, it is possible to create an operator handle 5 with improved operability. Thus, it is possible to create an easy-to-use operator handle.

[0067] This disclosure is not limited to the embodiments described above, and any modifications, improvements, etc., that are effective in achieving the objectives of this disclosure are included.

[0068] For example, the configuration of the operator handle is not limited to the configuration of the operator handle 5 according to this embodiment. The operator handle may be foldable or not foldable.

[0069] Furthermore, although the above embodiment described an example in which the operator handle is applied to a vertical sliding window, it is not limited to this. For example, the operator handle may also be applied to a horizontal sliding window. The operator handle only needs to be able to rotate the sliding door, which can be opened and closed by rotating around a pivot axis, and the operator handle may also be applied to joinery that does not have a sliding structure. [Explanation of Symbols]

[0070] 1. Vertical sliding window (joinery), 2. Frame, 3. Sash, 5. Operator handle, 52. Handle section

Claims

1. An operator handle provided on a joinery comprising a frame and a sliding door rotatably supported by the frame, having a rotatable handle portion, The handle portion can be rotated, thereby rotating the sliding door around its axis of rotation, which allows the sliding door to be opened and closed. When the handle is rotated, the opening angle of the sliding door when the handle is rotated is defined as the unit rotation sliding door angle, and when the handle is rotated, the initial unit rotation sliding door angle of the sliding door at the beginning of the handle's rotation range is defined as the initial unit rotation sliding door angle, and the intermediate unit rotation sliding door angle of the sliding door at the middle of the handle's rotation range is defined as the intermediate unit rotation sliding door angle, An operator handle in which the ratio of the initial unit rotation angle of the sliding door to the intermediate unit rotation angle of the sliding door is 1.11 to 1.

31.

2. The operator handle according to claim 1, wherein the number of rotations of the handle when rotating the handle from fully closed to fully open the sliding door is 11 rotations or less.

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