A quick-release push-pull brake pedal suitable for open and closed cabin driving of armored vehicles

Abstract

This invention belongs to the field of armored vehicle braking control technology, specifically relating to a quick-release push-pull brake pedal suitable for driving armored vehicles with both open and closed compartments. The fixed pedal arm (1) and the moving pedal arm (2) are connected by an "I"-shaped guide rail and can achieve relative movement and relative fixation under the control of the sliding actuator (4), thereby extending or shortening the pedal arm to achieve adjustable brake pedal height. The sliding actuator (4) plays the role of adjusting and fixing the moving pedal arm (2), and several sets of return springs (43), push rods (44), and knobs (45) are provided on the moving pedal arm (2) to make the brake pedal meet the height required by the driver under different driving conditions. The entire structure is well-fitted, easy to operate, and the parts are easy to disassemble and maintain, meeting the seating comfort requirements of personnel at different driving heights.

Description

Technical Field

[0001] This invention belongs to the field of armored vehicle braking and control technology, specifically relating to a quick-release push-pull brake pedal suitable for driving armored vehicles with both the hatch open and closed. Background Technology

[0002] There are two driving heights for drivers operating armored vehicles: one is with the driver's hatch closed, the seat adjusted to its lowest position, and the driver driving with the hatch closed, in which case the driver's height is the lowest; the other is with the hatch open, the driver adjusting the seat according to their own visibility, and leaning out of the driver's hatch to drive with the hatch open, in which case the driver's height is increased. At the same time, drivers of different heights have different requirements for pedal height. The height of the brake pedal in armored vehicles is generally designed based on the first working condition, which can only meet the needs of the driver driving with the hatch closed. When there is an open driving condition or when the vehicle is driven by drivers with large differences in height, the driver will find it inconvenient to operate the brake pedal because the pedal height cannot be adjusted, which cannot meet the seating comfort requirements of personnel with different driving heights. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] The technical problem to be solved by this invention is: how to make the height of the pedal adjustable without changing the original position of the pedal, so as to meet the pedal height requirements under different driving conditions, and also to meet the requirements of convenient operation, safe and reliable structure, easy disassembly of each part, and high maintainability.

[0005] (II) Technical Solution

[0006] To solve the above technical problems, the present invention provides a quick-release push-pull brake pedal suitable for driving armored vehicles with open and closed compartments. The quick-release push-pull brake pedal suitable for driving armored vehicles with open and closed compartments includes: a fixed pedal arm (1), a movable pedal arm (2), a pedal (3), and a sliding actuator (4).

[0007] The fixed pedal arm (1) is installed on the armored vehicle. The fixed pedal arm (1) and the movable pedal arm (2) are slidably engaged by the "I"-shaped guide rail. The upper end of the movable pedal arm (2) is fixedly connected to the pedal (3). The fixed pedal arm (1) and the movable pedal arm (2) are relatively fixed or relatively movable through the sliding actuator (4).

[0008] The sliding actuator (4) includes a main spring (41), a sliding pin (42), a return spring (43), a push rod (44), and a knob (45);

[0009] At the upper end of the fixed pedal arm (1), a secondary stepped hole (11) is provided along the extension direction perpendicular to the fixed pedal arm (1) for placing the main spring (41) and the sliding pin (42). The larger hole in the secondary stepped hole (11) is matched with the sliding pin (42), and the smaller hole is used to place the main spring (41). The outer end of the smaller hole of the secondary stepped hole (11) is closed, one end of the main spring (41) is in contact with the closed wall, and the other end of the main spring (41) is in contact with the sliding pin (42). A protrusion (12) is formed on the inner wall of the larger hole of the secondary stepped hole (11).

[0010] The main body of the sliding pin (42) is a cylindrical pin. A positioning hole (421) is provided on the contact surface between the sliding pin (42) and the main spring (41) to prevent the main spring (41) from shifting. A combination slot (423) is provided on the cylindrical surface of the sliding pin (42). The combination slot (423) includes a circumferential circular slide rail and an axial groove extending along the axis, which is used to slide and cooperate with the protrusion (12) provided in the large hole of the secondary stepped hole (11). An internal hexagonal hole (422) is provided at the other end of the sliding pin (42) to be adapted to the external hexagonal end (441) of the push rod (44).

[0011] The movable pedal arm (2) and the fixed pedal arm (1) are arranged side by side. The movable pedal arm (2) has three-stage stepped through holes (21) along the extension direction perpendicular to the movable pedal arm (2). The large hole is matched with the sliding pin (42), and the medium hole and the small hole rely on the difference in hole diameter and the stepped structure on the rod of the push rod (44) to realize the sliding and limiting of the push rod (44).

[0012] The push rod (44) is placed in the three-step through hole (21) on the moving pedal arm (2). The outer hexagonal end (441) of one end of the push rod (44) is provided with a return spring (43). The other end of the return spring (43) is in contact with the sliding pin (42). When the fixed pedal arm (1) and the moving pedal arm (2) are relatively fixed, the return spring (43) is always in a compressed state, so that the push rod (44) is subjected to force and does not shake randomly. The threaded end (443) of the other end of the push rod (44) is threadedly engaged with the knob (45). Rotating the knob (45) can rotate the push rod (44), which can also prevent the push rod (44) from coming out of the three-step through hole (21) of the moving pedal arm (2).

[0013] Among them, the three-stage stepped through holes (21) on the moving pedal arm (2) are arranged in parallel with each other. Each three-stage stepped through hole (21) can correspond to the two-stage stepped hole (11) on the fixed pedal arm (1) so that the moving pedal arm (2) can cooperate with the fixed pedal arm (1) when it is adjusted to the corresponding position. Each three-stage stepped through hole (21) contains a set of return spring (43), push rod (44) and knob (45) combination. The large hole of the three-stage stepped through hole (21) on the moving pedal arm (2) has the same diameter as the large hole of the two-stage stepped hole (11) on the fixed pedal arm (1) so as to allow the sliding pin (42) to move back and forth between the two holes.

[0014] The size of the protrusion (12) is set such that its size along the axial direction of the large hole is not greater than the axial dimension of the circular slide rail; the position of the protrusion (12) is set such that it moves within the circular slide rail and the axial groove.

[0015] In the case where the fixed pedal arm (1) and the moving pedal arm (2) are relatively fixed, the protrusion (12) is located in the axial groove of the combination slot (423);

[0016] When it is necessary for the fixed pedal arm (1) and the moving pedal arm (2) to move relative to each other, press the push rod (44) towards the fixed pedal arm (1), thereby causing the sliding pin (42) to press the main spring (41). The protrusion (12) moves to the circular slide rail in the axial groove of the combination slot (423) and stops. At this time, the sliding pin (42) is fully inserted into the large hole in the secondary stepped hole (11). Then rotate the push rod (44), and rotate the sliding pin (42) through the internal hexagonal engagement of the push rod (44) and the sliding pin (42). The protrusion (12) slides in the circular slide rail of the combination slot (423), making the sliding pin (42) unable to move axially. Then return the push rod (44) to its original position, and the state of relative movement of the fixed pedal arm (1) and the moving pedal arm (2) can be achieved.

[0017] When it is necessary to change the pedal arm (1) and the moving pedal arm (2) from a relatively active state to a relatively fixed state, the rotating push rod (44) rotates the sliding pin (42). When the protrusion (12) moves circumferentially along the circular slide rail to the slot of the axial groove, under the restoring force of the main spring (41), the sliding pin (42) is pushed in the opposite direction, so that the protrusion (12) returns to the axial groove of the combination slot (423). At the same time, the sliding pin (42) reaches between the fixed pedal arm (1) and the moving pedal arm (2), so that the fixed pedal arm (1) and the moving pedal arm (2) are relatively fixed.

[0018] The push rod (44) has an elongated hole (442) in the form of a blind hole at one end of its hexagonal end (441) for placing a return spring (43).

[0019] Among them, a return spring (43) is sleeved on the outer hexagonal end (441) of one end of the push rod (44).

[0020] The upper end of the action pedal arm (2) is set as an arc end face and is fixedly connected to the inner arc surface of the pedal (3).

[0021] Among them, the fixed pedal arm (1) and the moving pedal arm (2) are in a parallel state and slide together through the corresponding "I"-shaped guide rails on the side.

[0022] The fixed pedal arm (1) is mounted on the armored vehicle via an integrally connected slant bar (1a) and a mounting hole (1b) provided on it.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, the present invention provides a quick-release push-pull brake pedal suitable for both open and closed-cabin driving of armored vehicles. The fixed pedal arm and the moving pedal arm are connected by an "I"-shaped guide rail and can achieve relative movement and relative fixation under the control of a sliding actuator, thereby extending or shortening the pedal arm to achieve adjustable brake pedal height. This allows the brake pedal to meet the driver's height requirements under different driving conditions. The entire structure is robust, easy to operate, and the parts are easy to disassemble, making it highly maintainable and meeting the seating comfort requirements of personnel at different driving heights. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a quick-release push-pull brake pedal for driving armored vehicles with both open and closed compartments, according to the present invention.

[0026] Figure 2 This is a cross-sectional schematic diagram of a quick-release push-pull brake pedal for driving armored vehicles with both the hatch open and closed, according to the present invention.

[0027] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0028] Figure 4 This is a schematic diagram of a fixed pedal arm structure for a quick-release push-pull brake pedal suitable for driving armored vehicles with both open and closed compartments, according to the present invention.

[0029] Figure 5 This is a schematic diagram of a sliding pin structure for a quick-release push-pull brake pedal suitable for driving armored vehicles with both the hatch open and closed, according to the present invention.

[0030] Figure 6 This is a schematic diagram of the movable pedal arm structure of a quick-release push-pull brake pedal applicable to the opening and closing driving of armored vehicles according to the present invention.

[0031] Figure 7 This is a schematic diagram of a push rod structure for quick-release push-pull brake pedals applicable to the opening and closing driving of armored vehicles according to the present invention.

[0032] Figure 8 This is a schematic diagram of a quick-release push-pull brake pedal knob structure applicable to the opening and closing of the compartment driving of an armored vehicle according to the present invention.

[0033] Among them, 1. Fixed pedal arm; 11. Secondary stepped hole; 12. Protrusion block; 2. Moving pedal arm; 21. Tertiary stepped through hole; 3. Pedal; 4. Sliding actuator; 41. Main spring; 42. Sliding pin; 421. Flat round hole; 422. Internal hexagonal hole; 423. Combination slot; 43. Return spring; 44. Push rod; 441. External hexagonal end; 442. Oblong hole; 443. Threaded end; 45. Knob. Detailed Implementation

[0034] To make the objectives, contents, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0035] To solve the above-mentioned technical problems, the present invention provides a quick-release push-pull brake pedal suitable for driving armored vehicles with both the hatch open and closed, such as... Figure 1 , Figure 2 As shown, the quick-release push-pull brake pedal suitable for opening and closing the cabin of armored vehicles includes: a fixed pedal arm (1), a movable pedal arm (2), a pedal (3), and a sliding actuator (4).

[0036] The fixed pedal arm (1) is installed on the armored vehicle. The fixed pedal arm (1) and the movable pedal arm (2) are slidably engaged by the "I"-shaped guide rail. The upper end of the movable pedal arm (2) is fixedly connected to the pedal (3). The fixed pedal arm (1) and the movable pedal arm (2) are relatively fixed or relatively movable through the sliding actuator (4).

[0037] Among them, such as Figure 3 As shown, the sliding actuator (4) includes a main spring (41), a sliding pin (42), a return spring (43), a push rod (44), and a knob (45);

[0038] At the upper end of the fixed pedal arm (1), a two-stage stepped hole (11) is provided along the extension direction perpendicular to the fixed pedal arm (1) for placing the main spring (41) and the sliding pin (42), such as... Figure 4As shown, the large hole in the secondary stepped hole (11) is matched with the sliding pin (42), and the small hole is used to place the main spring (41); the outer end of the small hole of the secondary stepped hole (11) is closed, one end of the main spring (41) contacts the closed wall, and the other end of the main spring (41) contacts the sliding pin (42); a protrusion (12) is formed on the inner wall of the large hole of the secondary stepped hole (11);

[0039] like Figure 5 As shown, the main body of the sliding pin (42) is a cylindrical pin. A positioning hole (421) is provided on the contact surface between the sliding pin (42) and the main spring (41) to prevent the main spring (41) from shifting. A combination slot (423) is provided on the cylindrical surface of the sliding pin (42). The combination slot (423) includes a circumferential circular slide rail and an axial groove extending along the axis, which is used to slide with the protrusion (12) provided in the large hole of the secondary stepped hole (11). An internal hexagonal hole (422) is provided at the other end of the sliding pin (42) to be adapted to the external hexagonal end (441) of the push rod (44).

[0040] like Figure 6 As shown, the moving pedal arm (2) and the fixed pedal arm (1) are arranged side by side. The moving pedal arm (2) has three-stage stepped through holes (21) along the extension direction perpendicular to the moving pedal arm (2). The large hole is matched with the sliding pin (42), and the medium hole and the small hole rely on the difference in hole diameter and the stepped structure on the rod of the push rod (44) to realize the sliding and limiting of the push rod (44).

[0041] The push rod (44) is placed in the three-step through hole (21) on the moving pedal arm (2), such as Figure 7 As shown, a return spring (43) is provided on the outer hexagonal end (441) of one end of the push rod (44). The other end of the return spring (43) is in contact with the sliding pin (42). When the fixed pedal arm (1) and the moving pedal arm (2) are relatively fixed, the return spring (43) is always in a compressed state, so that the push rod (44) is subjected to force and does not shake randomly. The threaded end (443) of the other end of the push rod (44) is threadedly engaged with the knob (45). Rotating the knob (45) can rotate the push rod (44), which can also prevent the push rod (44) from coming out of the three-stage stepped through hole (21) of the moving pedal arm (2).

[0042] Among them, the three-stage stepped through holes (21) on the moving pedal arm (2) are arranged in parallel with each other. Each three-stage stepped through hole (21) can correspond to the two-stage stepped hole (11) on the fixed pedal arm (1) so that the moving pedal arm (2) can cooperate with the fixed pedal arm (1) when it is adjusted to the corresponding position. Each three-stage stepped through hole (21) contains a set of return spring (43), push rod (44) and knob (45) combination. The large hole of the three-stage stepped through hole (21) on the moving pedal arm (2) has the same diameter as the large hole of the two-stage stepped hole (11) on the fixed pedal arm (1) so as to allow the sliding pin (42) to move back and forth between the two holes.

[0043] The size of the protrusion (12) is set such that its size along the axial direction of the large hole is not greater than the axial dimension of the circular slide rail; the position of the protrusion (12) is set such that it moves within the circular slide rail and the axial groove.

[0044] In the case where the fixed pedal arm (1) and the moving pedal arm (2) are relatively fixed, the protrusion (12) is located in the axial groove of the combination slot (423);

[0045] When it is necessary for the fixed pedal arm (1) and the moving pedal arm (2) to move relative to each other, press the push rod (44) towards the fixed pedal arm (1), thereby causing the sliding pin (42) to press the main spring (41). The protrusion (12) moves to the circular slide rail in the axial groove of the combination slot (423) and stops. At this time, the sliding pin (42) is fully inserted into the large hole in the secondary stepped hole (11). Then rotate the push rod (44), and rotate the sliding pin (42) through the internal hexagonal engagement of the push rod (44) and the sliding pin (42). The protrusion (12) slides in the circular slide rail of the combination slot (423), making the sliding pin (42) unable to move axially. Then return the push rod (44) to its original position, and the state of relative movement of the fixed pedal arm (1) and the moving pedal arm (2) can be achieved.

[0046] When it is necessary to change the pedal arm (1) and the moving pedal arm (2) from a relatively active state to a relatively fixed state, the rotating push rod (44) rotates the sliding pin (42). When the protrusion (12) moves circumferentially along the circular slide rail to the slot of the axial groove, under the restoring force of the main spring (41), the sliding pin (42) is pushed in the opposite direction, so that the protrusion (12) returns to the axial groove of the combination slot (423). At the same time, the sliding pin (42) reaches between the fixed pedal arm (1) and the moving pedal arm (2), so that the fixed pedal arm (1) and the moving pedal arm (2) are relatively fixed.

[0047] The push rod (44) has an elongated hole (442) in the form of a blind hole at one end of its hexagonal end (441) for placing a return spring (43).

[0048] Among them, a return spring (43) is sleeved on the outer hexagonal end (441) of one end of the push rod (44).

[0049] The upper end of the action pedal arm (2) is set as an arc end face and is fixedly connected to the inner arc surface of the pedal (3).

[0050] Among them, the fixed pedal arm (1) and the moving pedal arm (2) are in a parallel state and slide together through the corresponding "I"-shaped guide rails on the side.

[0051] The fixed pedal arm (1) is mounted on the armored vehicle via an integrally connected slant bar (1a) and a mounting hole (1b) provided on it.

[0052] In summary, the present invention provides a quick-release push-pull brake pedal suitable for both open and closed-cabin driving of armored vehicles. The fixed pedal arm (1) and the moving pedal arm (2) are connected by an "I"-shaped guide rail. Under the control of the sliding actuator (4), they can achieve relative movement and relative fixation, thereby extending or shortening the pedal arm and making the brake pedal height adjustable. The sliding actuator (4) plays the role of adjusting and fixing the moving pedal arm (2). Furthermore, the moving pedal arm (2) is provided with a combination of several return springs (43), push rods (44), and knobs (45) to ensure that the brake pedal meets the height required by the driver under different driving conditions. The entire structure is well-fitted, easy to operate, and the parts are easy to disassemble and maintain, meeting the seating comfort requirements of personnel at different driving heights.

[0053] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A quick release push-pull brake pedal suitable for use in opening and closing the hatch of an armored vehicle, characterized in that, The quick-release push-pull brake pedal applicable to the opening and closing of armored vehicle cabin driving includes: a fixed pedal arm (1), a movable pedal arm (2), a pedal (3), and a sliding actuator (4). The fixed pedal arm (1) is installed on the armored vehicle. The fixed pedal arm (1) and the movable pedal arm (2) are slidably engaged by the "I"-shaped guide rail. The upper end of the movable pedal arm (2) is fixedly connected to the pedal (3). The fixed pedal arm (1) and the movable pedal arm (2) are relatively fixed or relatively movable by the sliding actuator (4). The sliding actuator (4) includes a main spring (41), a sliding pin (42), a return spring (43), a push rod (44), and a knob (45). At the upper end of the fixed pedal arm (1), a secondary stepped hole (11) is provided along the extension direction perpendicular to the fixed pedal arm (1) for placing the main spring (41) and the sliding pin (42). The larger hole in the secondary stepped hole (11) is matched with the sliding pin (42), and the smaller hole is used to place the main spring (41). The outer end of the smaller hole of the secondary stepped hole (11) is closed, one end of the main spring (41) is in contact with the closed wall, and the other end of the main spring (41) is in contact with the sliding pin (42). A protrusion (12) is formed on the inner wall of the larger hole of the secondary stepped hole (11). The main body of the sliding pin (42) is a cylindrical pin. A positioning hole (421) is provided on the contact surface between the sliding pin (42) and the main spring (41) to prevent the main spring (41) from shifting. A combination slot (423) is provided on the cylindrical surface of the sliding pin (42). The combination slot (423) includes a circumferential circular slide rail and an axial groove extending along the axis, which is used to slide and cooperate with the protrusion (12) provided in the large hole of the secondary stepped hole (11). An internal hexagonal hole (422) is provided at the other end of the sliding pin (42) to be adapted to the external hexagonal end (441) of the push rod (44). The movable pedal arm (2) and the fixed pedal arm (1) are arranged side by side. The movable pedal arm (2) has three-stage stepped through holes (21) along the extension direction perpendicular to the movable pedal arm (2). The large hole is matched with the sliding pin (42), and the medium hole and the small hole rely on the difference in hole diameter and the stepped structure on the rod of the push rod (44) to realize the sliding and limiting of the push rod (44). The push rod (44) is placed in the three-step through hole (21) on the moving pedal arm (2). The outer hexagonal end (441) of the push rod (44) is provided with a return spring (43). The other end of the return spring (43) is in contact with the sliding pin (42). When the fixed pedal arm (1) and the moving pedal arm (2) are relatively fixed, the return spring (43) is always in a compressed state, so that the push rod (44) is subjected to force and does not shake randomly. The threaded end (443) of the other end of the push rod (44) is threadedly engaged with the knob (45). Rotating the knob (45) can rotate the push rod (44), which can also prevent the push rod (44) from coming out of the three-step through hole (21) of the moving pedal arm (2). Among them, there are several three-stage stepped through holes (21) on the moving pedal arm (2) that are parallel to each other. Each three-stage stepped through hole (21) can correspond to the two-stage stepped hole (11) on the fixed pedal arm (1) so that the moving pedal arm (2) can cooperate with the fixed pedal arm (1) when it is adjusted to the corresponding position. Each three-stage stepped through hole (21) contains a set of a set of return spring (43), push rod (44) and knob (45). The large hole of the three-stage stepped through hole (21) on the moving pedal arm (2) has the same diameter as the large hole of the two-stage stepped hole (11) on the fixed pedal arm (1) so as to allow the sliding pin (42) to move back and forth between the two holes.

2. The quick-release push-pull brake pedal for opening and closing the hatch of an armored vehicle as described in claim 1, characterized in that, The dimensions of the protrusion (12) are set such that the dimension along the axial direction of the large hole is not greater than the axial dimension of the circular slide rail; the position of the protrusion (12) is set such that it moves within the circular slide rail and the axial groove.

3. The quick-release push-pull brake pedal for opening and closing the hatch of an armored vehicle as described in claim 2, characterized in that, With the fixed pedal arm (1) and the moving pedal arm (2) relatively fixed, the protrusion (12) is located in the axial groove of the combination slot (423); When it is necessary for the fixed pedal arm (1) and the moving pedal arm (2) to move relative to each other, press the push rod (44) towards the fixed pedal arm (1), thereby causing the sliding pin (42) to press the main spring (41). The protrusion (12) moves to the circular slide rail in the axial groove of the combination slot (423) and stops. At this time, the sliding pin (42) is fully inserted into the large hole in the secondary stepped hole (11). Then rotate the push rod (44), and rotate the sliding pin (42) through the internal hexagonal engagement of the push rod (44) and the sliding pin (42). The protrusion (12) slides in the circular slide rail of the combination slot (423), making the sliding pin (42) unable to move axially. Then return the push rod (44) to its original position, and the state of relative movement of the fixed pedal arm (1) and the moving pedal arm (2) can be achieved.

4. The quick-release push-pull brake pedal for opening and closing the hatch of an armored vehicle as described in claim 3, characterized in that, When it is necessary to change the pedal arm (1) and the moving pedal arm (2) from a relatively active state to a relatively fixed state, the rotating push rod (44) rotates the sliding pin (42). When the protrusion (12) moves circumferentially along the circular slide rail to the slot of the axial groove, under the restoring force of the main spring (41), the sliding pin (42) is pushed in the opposite direction, so that the protrusion (12) returns to the axial groove of the combination slot (423). At the same time, the sliding pin (42) reaches between the fixed pedal arm (1) and the moving pedal arm (2), achieving a relatively fixed state between the fixed pedal arm (1) and the moving pedal arm (2).

5. The quick-release push-pull brake pedal for opening and closing the hatch of an armored vehicle as described in claim 4, characterized in that, The push rod (44) has an elongated hole (442) in the form of a blind hole at one end of its hexagonal end (441) for placing a return spring (43).

6. The quick-release push-pull brake pedal for opening and closing the hatch of an armored vehicle as described in claim 4, characterized in that, A reset spring (43) is fitted onto the outer hexagonal end (441) of one end of the push rod (44).

7. The quick-release push-pull brake pedal for opening and closing the hatch of an armored vehicle as described in claim 4, characterized in that, The upper end of the action pedal arm (2) is set as an arc end face and is fixedly connected to the inner arc surface of the pedal (3).

8. The quick-release push-pull brake pedal for opening and closing the hatch of an armored vehicle as described in claim 4, characterized in that, When the fixed pedal arm (1) and the moving pedal arm (2) are in a parallel state, they slide together through the corresponding "I"-shaped guide rails on the side. The fixed pedal arm (1) is mounted on the armored vehicle via an integrally connected slant bar (1a) and a mounting hole (1b) provided on the slant bar (1a).

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